Buy 4, Get 1 FREE Frogs, Through 06/30. Save Now

20% Off All St. Croix Mojo Bass Rods, Through 06/28. Save Now

Buy One, Get One FREE P-Line Tactical Fluorocarbon. Learn More

PRO members get free shipping, rewards & local lake data! Join Today

Markdowns on popular products - See all bargain offers

Omnia Fishing
Omnia Fishing

Portage Lake

Published: Updated:

Spring Fishing Patterns on Portage Lake

SeasonSpeciesWater TempBehavioral PatternsKey LocationsBest TechniquesForage TypesBait Colors
Spring (Pre-Spawn)Largemouth Bass48-60
  • Bass are transitioning from winter patterns to pre-spawn staging areas, becoming more active as water temperatures rise
  • Fish are beginning to move from deeper winter areas to shallower flats and staging points near spawning areas
  • Feeding activity increases as bass prepare for spawning, with aggressive responses to properly presented baits
  • Secondary points and channel swings leading to spawning flats
  • Flooded brush and dock areas in 5-10 foot depth range
  • Deep weed edges transitioning to shallow flats
  • Lipless Crankbaits worked along transitional areas and emerging vegetation
  • Bladed Jigs slow-rolled through brush and around dock areas
  • Soft Jerkbaits worked with long pauses around staging points
  • Bluegill beginning to become more active in warming shallows
  • Shad schools congregating near points and channel swings
  • Early season crawfish becoming active in rocky areas
  • Natural Craw Colors
  • Dark Neutrals
  • Natural Baitfish Colors
Spring (Pre-Spawn)Walleye38-48
  • Walleye transitioning from winter deep water locations to shallow spawning areas, staging at key structural elements
  • Feeding activity increases as water warms, with peak activity during dawn and dusk periods
  • Fish becoming more aggressive as they prepare for spawn, particularly responsive to larger profile baits
  • Main lake points adjacent to spawning areas
  • Wind-swept shorelines with rock or gravel substrate
  • Transition areas between deep winter holes and shallow flats
  • Blade Baits worked slowly along bottom contours
  • Live Bait Rigs with minnows near transition areas
  • Vertical Jigging Mid Depth (10-19') on primary points
  • Perch concentrating near structural elements
  • Shad schools in slightly deeper water
  • Small bluegills along emerging weed edges
  • Purple Colors
  • Natural Baitfish Colors
  • Chartreuse Colors
Spring (Pre-Spawn)Panfish / Bluegill58-68
  • Bluegill transitioning from winter depths to warmer shallows, staging near spawning areas but not yet on beds
  • Actively feeding during warming trends, particularly during afternoon hours when water temperatures peak
  • Congregating near emerging vegetation and structure that provides both cover and feeding opportunities
  • Protected shallow bays with emerging vegetation in 4-8 foot depth
  • Dock areas providing structure and shade in 6-10 foot depth
  • Transition areas between shallow flats and deeper water
  • Live Bait Rigs with small minnows or worms worked slowly
  • Ice Fishing Jigs (sized down) worked vertically around structure
  • Micro Crankbaits retrieved slowly near emerging vegetation
  • Small aquatic insects and larvae emerging with warming water
  • Tiny crustaceans active in vegetation
  • Small minnows in shallow areas
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
Spring (Spawn)Largemouth Bass60-65
  • Bass are actively moving between pre-spawn staging areas and spawning flats, with water temperatures between 60-65°F indicating spawn phase
  • Fish showing aggressive feeding periods in shallows, particularly during stable weather, but becoming more selective during wind events over 20mph
  • Shallow flats on the south end of the lake, particularly near spawning areas
  • Pad fields on the north end offering spawning habitat and cover
  • Drop-off edges in 6-10 foot range where pre-spawn fish stage
  • Hard Jerkbaits with 3-4 second pauses in 6-10 foot depths
  • Frogs/Toads worked through pad fields
  • Hard Topwater (Popping) on shallow flats in moderate wind
  • Spinnerbaits along drop-off edges when wind increases
  • Shad - primary forage based on recent reports
  • Bluegill - typical spring spawn period forage
  • Natural Shad Colors
  • Natural Craw Colors
  • Dark Neutrals
Spring (Spawn)Walleye42-52
  • Moving shallow (2-10 feet) to spawn near rocky points and gravel areas, most active during dawn and dusk
  • Males arrive first and stay longer on spawning grounds, females move in briefly to spawn then retreat to adjacent deeper water
  • Feeding becomes secondary to spawning, but opportunistic feeding occurs near spawning areas
  • Rocky points and gravel areas in 2-10 feet of water
  • Transition areas between spawning flats and deeper water
  • Windward shorelines where current creates feeding opportunities
  • Live Bait Rigs worked slowly along bottom near spawning areas
  • Vertical Jigging Shallow (0-9') with light jigs
  • Shallow Diving Crankbaits (0-6') during low light periods
  • Perch
  • Shad
  • Bluegill
  • Purple Colors
  • Chartreuse Colors
  • Natural Baitfish Colors
Spring (Spawn)Panfish / Bluegill65-75
  • Bluegill moving into shallow spawning areas (2-6 feet) and establishing nesting colonies near vegetation and structure
  • Males becoming territorial and aggressive while guarding nests, making them more likely to strike at small intruders
  • Pre-spawn feeding activity increasing as water warms, with fish actively foraging near spawning areas
  • Protected shallow bays with firm bottom near weed edges
  • Areas adjacent to docks in 4-6 foot depth
  • Shallow flats with scattered vegetation in 2-4 foot depth
  • Live Bait Rigs with small hooks and light line for natural presentation
  • Bobbers suspended 1-3 feet deep near spawning areas
  • Finesse Hair Jigs worked slowly through spawning colonies
  • Small insects and larvae
  • Tiny crustaceans
  • Small aquatic worms
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
Spring (Post-Spawn)Largemouth Bass68-75
  • Bass are actively feeding in shallow areas, particularly around vegetation and docks, with surface-oriented feeding behavior noted in recent reports
  • Fish showing preference for ambush points near vegetation edges and dock structures, with less aggressive strikes (sucking vs. exploding on topwater) indicating a methodical feeding pattern
  • Thick vegetation areas, especially newly emerging weed growth
  • Dock areas, particularly those adjacent to deeper water
  • Shallow flats with scattered vegetation
  • Hard Topwater (Popping) worked with subtle movements to match observed feeding behavior
  • Wacky Rigs worked slowly around docks and vegetation edges
  • Frogs/Toads worked over vegetation mats
  • Texas Rigs (Pitch/Flip) for precise presentations around dock posts
  • Bluegill, especially around vegetation and dock areas
  • Shad in open water areas between structure
  • Various insects and small surface prey
  • Natural Baitfish Colors
  • Dark Neutrals
  • Green Colors
Spring (Post-Spawn)Walleye48-62
  • Post-spawn walleye recovering and actively feeding, with peak activity during dawn/dusk and overcast conditions
  • Moving between shallow feeding areas and adjacent deeper water rest areas, particularly along weed edges and points
  • Wind-swept points and shorelines adjacent to deeper water
  • Emerging weed edges in 8-15 feet of water
  • Shallow flats with scattered vegetation near deep water access
  • Vertical Jigging Shallow (0-9') with live bait or soft plastics along breaks
  • Shallow Diving Crankbaits (0-6') parallel to weed edges
  • Live Bait Rigs worked slowly along transition areas
  • Perch concentrating near emerging vegetation
  • Shad schools in wind-blown areas
  • Bluegills moving into shallow spawning areas
  • Natural Baitfish Colors
  • Purple Colors
  • Chartreuse Colors
Spring (Post-Spawn)Panfish / Bluegill65-75
  • Post-spawn bluegills are actively feeding to recover energy, transitioning between shallow spawning areas and deeper feeding zones
  • Fish are taking advantage of emerging insect hatches and beginning to establish summer feeding patterns near weed edges and dock areas
  • Weed edges in 6-10 foot depth range adjacent to spawning flats
  • Dock areas providing shade and structure
  • Shallow coves with emerging vegetation
  • Live Bait Rigs with light line and small hooks
  • Bobbers suspended at varying depths to find active fish
  • Inline Spinners worked slowly near structure
  • Emerging aquatic insects and larvae
  • Small crustaceans in weed beds
  • Newly hatched baitfish
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors

Summer Fishing Patterns

SeasonSpeciesWater TempBehavioral PatternsKey LocationsBest TechniquesForage TypesBait Colors
SummerLargemouth Bass73-78
  • Bass are actively feeding in multiple depth zones, from shallow flooded areas (2-3ft) to deep weedlines (15ft), adjusting location based on time of day and weather conditions
  • Fish showing opportunistic feeding patterns, with increased activity during low-light periods and before weather changes
  • Bass utilizing newly flooded cover as ambush points, particularly during high water conditions
  • Flooded brush and timber, especially around shoreline structures like cedar trees
  • Deep weedlines at 15-foot depth contours
  • Submerged vegetation edges, particularly those adjacent to deeper water
  • Wacky Rigs worked slowly around flooded cover
  • Drop Shot targeting suspended fish along deep weedlines
  • Hard Topwater (Popping) during low light periods
  • Ned Rigs for tough conditions and deeper fish
  • Bluegill in and around vegetation
  • Insects active in shallow flooded areas
  • Crappie around deeper structure
  • Dark Neutrals
  • Natural Craw Colors
  • Light Neutral Colors
SummerWalleye65-78
  • Active during early morning and evening, seeking cooler water and optimal feeding conditions near weed edges and points
  • Moving between deep structure (20-30ft) during midday heat and shallower feeding areas (8-15ft) during low light periods
  • Relating strongly to wind-blown areas where baitfish are concentrated, especially along weed edges and points
  • Weed edges adjacent to deep water in 12-15 foot range
  • Wind-blown points with access to deeper water
  • Deep humps near main lake basin in 20-30 foot range
  • Live Bait Rigs worked along weed edges and transition areas
  • Trolling Mid Depth (10-19') with crankbaits during low light periods
  • Vertical Jigging Mid Depth (10-19') on deep structure during midday
  • Perch relating to weed edges
  • Shad schooling in open water and along structure
  • Bluegills in and around weed beds
  • Natural Baitfish Colors
  • Purple Colors
  • Chartreuse Colors
SummerPanfish / Bluegill75-82
  • Bluegills are actively feeding near the surface during daylight hours, particularly focused on insect activity as evidenced by surface feeding behavior
  • Fish are holding in and around heavy weed growth, moving between shallow feeding areas and slightly deeper refuge areas as temperatures fluctuate
  • Thick weed beds in 6-10 foot depth range where bluegill beds are present
  • Surface areas near weed edges during insect hatches
  • Dock areas providing shade and structure
  • Live Bait Rigs suspended at active feeding depths, particularly effective given recent success reports
  • Bobbers with small presentations positioned just above weed tops
  • Micro Crankbaits worked slowly through open pockets in weeds
  • Surface insects and emerging aquatic insects
  • Small invertebrates in weed beds
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors

Fall Fishing Guide for Portage Lake

SeasonSpeciesWater TempBehavioral PatternsKey LocationsBest TechniquesForage TypesBait Colors
FallLargemouth Bass52-68
  • Actively feeding and following baitfish schools as they migrate to shallow flats and creek arms
  • Moving between deep weed edges and adjacent shallow areas, becoming more aggressive as water cools
  • Deep weed edges at 15-foot depth contours near points
  • Shallow flats with remaining vegetation adjacent to deep water
  • Flooded brush and dock areas with access to deeper water
  • Spinnerbaits worked parallel to weed edges and through remaining vegetation
  • Medium Diving Crankbaits (7'-12') along points and deeper structure
  • Soft Body Swimbaits (Small/Medium) for matching prevalent baitfish
  • Shad schools migrating to shallower areas
  • Bluegill relating to remaining vegetation
  • Crappie schools in transition areas
  • Natural Shad Colors
  • Dark Neutrals
  • Natural Baitfish Colors
FallWalleye48-65
  • Walleye actively feeding on concentrated baitfish schools, especially during dawn and dusk periods
  • Fish transitioning between summer and winter locations, following forage and responding to cooling water temperatures
  • More active during daylight hours compared to summer, especially on windy days
  • Deep weed edges adjacent to primary points
  • Windward shorelines and points where baitfish are concentrated
  • Offshore humps transitioning from 15-30 feet of water
  • Vertical Jigging Mid Depth (10-19')
  • Blade Baits
  • Medium Diving Crankbaits (7'-12')
  • Shad schools congregating in deeper water
  • Yellow Perch along weed edges
  • Bluegills moving deeper from summer locations
  • Purple Colors
  • Natural Shad Colors
  • Natural Baitfish Colors
FallPanfish / Bluegill55-68
  • Transitioning from shallow summer patterns to deeper staging areas, actively feeding to build up reserves for winter
  • Forming larger schools in preparation for winter, with feeding activity concentrated during warmer parts of the day
  • Deep weed edges in 6-10 foot range adjacent to shallow feeding areas
  • Dock areas providing shade and structure, particularly those near deeper water
  • Protected coves with remaining vegetation where water temperatures stay warmer
  • Live Bait Rigs with small minnows or worms suspended just above weed tops
  • Ice Fishing Jigs worked vertically through schools
  • Micro Crankbaits retrieved slowly along weed edges
  • Small aquatic insects and larvae
  • Zooplankton concentrated in remaining weed growth
  • Small minnows and young-of-year fish
  • Natural Baitfish Colors
  • Dark Neutrals
  • Purple Colors

Winter & Ice Fishing Patterns

SeasonSpeciesWater TempBehavioral PatternsKey LocationsBest TechniquesForage TypesBait Colors
WinterWalleye38-45
  • Moving shallower during twilight hours to feed on points and along steep breaks
  • Suspended near deeper structure during daylight hours
  • Actively feeding during low-light conditions and wind-generated current opportunities
  • Deep humps and breaks in 20-30 foot range
  • Points with access to deep water
  • Windward shorelines with current during active periods
  • Vertical Jigging Deep (20'+)
  • Blade Baits
  • Soft Body Swimbaits (Small/Medium)
  • Perch
  • Shad
  • Bluegill
  • Purple Colors
  • Natural Baitfish Colors
  • Dark Neutrals
WinterPanfish / Bluegill45-55
  • Seeking warmer, more oxygenated water in shallow protected areas with 5-10 foot depths
  • Actively feeding during late afternoon when water temperatures peak
  • Protected coves with remaining vegetation in 6-10 foot depth
  • Dock areas providing overhead cover and thermal refuge
  • Points adjacent to deeper water that offer quick depth transitions
  • Vertical Jigging Shallow (0-9')
  • Live Bait Rigs
  • Micro Crankbaits
  • Small aquatic insects
  • Zooplankton
  • Small minnows
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
IceWalleye32-34
  • Walleye are holding tight to deep structure, particularly humps in 30-foot depths, exhibiting typical winter behavior
  • Fish are actively feeding on perch during stable weather conditions, with activity likely concentrated during dawn and dusk periods
  • Deep humps in 25-35 foot range, particularly those adjacent to deeper water
  • Deep weed edges where they transition to hard bottom
  • Deep points and breaks near primary lake basin
  • Ice Fishing Spoons worked with a subtle jigging motion, particularly effective during prime feeding periods
  • Ice Fishing Jigs tipped with minnows for a more subtle presentation during negative periods
  • Ice Fishing Tip-Ups set along depth transitions for targeting active fish
  • Perch - primary forage confirmed by recent fishing reports
  • Shad - mentioned as common forage in lake profile
  • Bluegill - noted in lake profile as available forage
  • Purple Colors
  • Dark Neutrals
  • Natural Baitfish Colors
IcePanfish / Bluegill34-39
  • Schooling in deeper basins near weed edges in 6-10 foot range, moving between feeding areas during prime daylight hours
  • Feeding activity peaks during mid-morning and late afternoon, with a focus on small invertebrates and zooplankton
  • Deep weed edges in 6-10 foot zones where vegetation meets basin areas
  • Areas near resort docks where suspended wood structure provides winter cover
  • Transition areas between weedy flats and deeper water
  • Ice Fishing Jigs worked with subtle movements just above the bottom
  • Ice Fishing Spoons jigged to attract fish and trigger reaction strikes
  • Live Bait Rigs with small ice jigs tipped with waxworms or euro larvae
  • Small aquatic invertebrates and insect larvae
  • Zooplankton concentrations in mid-water column
  • Tiny crustaceans near bottom structure
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Purple Colors

Key Seasonal Structures in Portage Lake

SeasonSpeciesPrimary StructureSecondary Structure
Spring (Pre-Spawn)Largemouth BassSecondary points and channel swings leading to spawning flatsFlooded brush and dock areas in 5-10 foot depth range
Spring (Pre-Spawn)WalleyeMain lake points adjacent to spawning areasWind-swept shorelines with rock or gravel substrate
Spring (Pre-Spawn)Panfish / BluegillProtected shallow bays with emerging vegetation in 4-8 foot depthDock areas providing structure and shade in 6-10 foot depth
Spring (Spawn)Largemouth BassShallow flats on the south end of the lake, particularly near spawning areasPad fields on the north end offering spawning habitat and cover
Spring (Spawn)WalleyeRocky points and gravel areas in 2-10 feet of waterTransition areas between spawning flats and deeper water
Spring (Spawn)Panfish / BluegillProtected shallow bays with firm bottom near weed edgesAreas adjacent to docks in 4-6 foot depth
Spring (Post-Spawn)Largemouth BassThick vegetation areas, especially newly emerging weed growthDock areas, particularly those adjacent to deeper water
Spring (Post-Spawn)WalleyeWind-swept points and shorelines adjacent to deeper waterEmerging weed edges in 8-15 feet of water
Spring (Post-Spawn)Panfish / BluegillWeed edges in 6-10 foot depth range adjacent to spawning flatsDock areas providing shade and structure
SummerLargemouth BassFlooded brush and timber, especially around shoreline structures like cedar treesDeep weedlines at 15-foot depth contours
SummerWalleyeWeed edges adjacent to deep water in 12-15 foot rangeWind-blown points with access to deeper water
SummerPanfish / BluegillThick weed beds in 6-10 foot depth range where bluegill beds are presentSurface areas near weed edges during insect hatches
FallLargemouth BassDeep weed edges at 15-foot depth contours near pointsShallow flats with remaining vegetation adjacent to deep water
FallWalleyeDeep weed edges adjacent to primary pointsWindward shorelines and points where baitfish are concentrated
FallPanfish / BluegillDeep weed edges in 6-10 foot range adjacent to shallow feeding areasDock areas providing shade and structure, particularly those near deeper water
WinterWalleyeDeep humps and breaks in 20-30 foot rangePoints with access to deep water
WinterPanfish / BluegillProtected coves with remaining vegetation in 6-10 foot depthDock areas providing overhead cover and thermal refuge
IceWalleyeDeep humps in 25-35 foot range, particularly those adjacent to deeper waterDeep weed edges where they transition to hard bottom
IcePanfish / BluegillDeep weed edges in 6-10 foot zones where vegetation meets basin areasAreas near resort docks where suspended wood structure provides winter cover

Primary Forage by Season

SeasonSpeciesPrimary ForageSecondary Forage
Spring (Pre-Spawn)Largemouth BassBluegill beginning to become more active in warming shallowsShad schools congregating near points and channel swings
Spring (Pre-Spawn)WalleyePerch concentrating near structural elementsShad schools in slightly deeper water
Spring (Pre-Spawn)Panfish / BluegillSmall aquatic insects and larvae emerging with warming waterTiny crustaceans active in vegetation
Spring (Spawn)Largemouth BassShad - primary forage based on recent reportsBluegill - typical spring spawn period forage
Spring (Spawn)WalleyePerchShad
Spring (Spawn)Panfish / BluegillSmall insects and larvaeTiny crustaceans
Spring (Post-Spawn)Largemouth BassBluegill, especially around vegetation and dock areasShad in open water areas between structure
Spring (Post-Spawn)WalleyePerch concentrating near emerging vegetationShad schools in wind-blown areas
Spring (Post-Spawn)Panfish / BluegillEmerging aquatic insects and larvaeSmall crustaceans in weed beds
SummerLargemouth BassBluegill in and around vegetationInsects active in shallow flooded areas
SummerWalleyePerch relating to weed edgesShad schooling in open water and along structure
SummerPanfish / BluegillSurface insects and emerging aquatic insectsSmall invertebrates in weed beds
FallLargemouth BassShad schools migrating to shallower areasBluegill relating to remaining vegetation
FallWalleyeShad schools congregating in deeper waterYellow Perch along weed edges
FallPanfish / BluegillSmall aquatic insects and larvaeZooplankton concentrated in remaining weed growth
WinterWalleyePerchShad
WinterPanfish / BluegillSmall aquatic insectsZooplankton
IceWalleyePerch - primary forage confirmed by recent fishing reportsShad - mentioned as common forage in lake profile
IcePanfish / BluegillSmall aquatic invertebrates and insect larvaeZooplankton concentrations in mid-water column

Bait Colors by Season for Portage Lake

SeasonSpeciesBait Colors
Spring (Pre-Spawn)Largemouth Bass
  • Natural Craw Colors
  • Dark Neutrals
  • Natural Baitfish Colors
Spring (Pre-Spawn)Walleye
  • Purple Colors
  • Natural Baitfish Colors
  • Chartreuse Colors
Spring (Pre-Spawn)Panfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
Spring (Spawn)Largemouth Bass
  • Natural Shad Colors
  • Natural Craw Colors
  • Dark Neutrals
Spring (Spawn)Walleye
  • Purple Colors
  • Chartreuse Colors
  • Natural Baitfish Colors
Spring (Spawn)Panfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
Spring (Post-Spawn)Largemouth Bass
  • Natural Baitfish Colors
  • Dark Neutrals
  • Green Colors
Spring (Post-Spawn)Walleye
  • Natural Baitfish Colors
  • Purple Colors
  • Chartreuse Colors
Spring (Post-Spawn)Panfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
SummerLargemouth Bass
  • Dark Neutrals
  • Natural Craw Colors
  • Light Neutral Colors
SummerWalleye
  • Natural Baitfish Colors
  • Purple Colors
  • Chartreuse Colors
SummerPanfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
FallLargemouth Bass
  • Natural Shad Colors
  • Dark Neutrals
  • Natural Baitfish Colors
FallWalleye
  • Purple Colors
  • Natural Shad Colors
  • Natural Baitfish Colors
FallPanfish / Bluegill
  • Natural Baitfish Colors
  • Dark Neutrals
  • Purple Colors
WinterWalleye
  • Purple Colors
  • Natural Baitfish Colors
  • Dark Neutrals
WinterPanfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Green Colors
IceWalleye
  • Purple Colors
  • Dark Neutrals
  • Natural Baitfish Colors
IcePanfish / Bluegill
  • Natural Baitfish Colors
  • Light Neutral Colors
  • Purple Colors