Lake Michigan salmon and bass activity building for late-June

What's biting

What's next

Late June on Lake Michigan's eastern shoreline marks a productive inflection point across multiple species, and the coming days should reward anglers who plan around early-morning windows when winds typically calm.

Chinook salmon are the headline act heading into early July. As surface temperatures warm through June, kings progressively stage near river mouth zones — including the Grand River at Grand Haven — drawn by concentrations of alewives and smelt. Expect fish to suspend 30 to 60 feet down over 70 to 120 feet of water, with trolling spoons and meat rigs producing as conditions warm. The WI DNR's 2024 Lake Michigan harvest review documented more than 160,000 Chinook harvested across the lake — the best figure since 2012 — signaling that the alewife forage base supporting those numbers remains robust heading into this season. That biological backdrop is encouraging for anglers targeting the Grand Haven corridor this week.

Smallmouth bass along rocky points, jetty structure, and riprap near the Grand River mouth are typically at or near their summer peak by late June. Morning and evening sessions on hard-bottom transitions using tubes, drop shots, or topwater should produce consistent action. Michigan Sportsman Forum posts from around Father's Day referenced good body-bait results in area bay water, with fish in the 2-to-3-pound class — consistent with post-spawn bass settled into summer feeding stations. Treat those forum reports as a general activity indicator rather than confirmed conditions, and adjust technique based on what you find on arrival.

Walleye near the Grand River mouth tend to shift deeper as June progresses and daytime temperatures climb. Night presentations along current breaks and channel edges — live rigs or crawlers on bottom bouncers — often outperform midday efforts once the surface warms. Check current USGS gauge data for Grand River flow before planning a river-mouth session, as summer low water concentrates fish but also calls for adjusting approach depth accordingly.

Yellow perch should be scattered across basin structure at 25 to 40 feet. Small tungsten jigs tipped with emerald shiners remain the standard approach. No weather forecast data was incorporated into this report — anglers should pull the NWS point forecast for Grand Haven before launching, particularly for afternoon wind build and wave heights on open water.

Context

Late June sits squarely in Lake Michigan's annual transition from spring to summer fishing mode. By this point most years, Chinook and coho that staged over cold offshore water in May and early June begin pushing shallower as surface temperatures climb through the 60s°F toward the low 70s°F near shore. The Grand River mouth at Grand Haven is historically one of the most productive staging areas on the Michigan side of the lake, concentrating salmon that hold in thermal transition zones near the river outflow before their fall run. The first-quarter moon phase this week typically produces reliable morning and evening feeding windows before fish go lethargic at midday.

The WI DNR's review of 2024 Lake Michigan fishing results — covering the full shared lake — recorded over 210,000 coho salmon harvested, a record, along with 160,000-plus Chinook, the best figure since 2012. The WI DNR attributed those strong numbers to improved alewife year-class survival linked to recent stocking calibration. While the harvest figures come from the Wisconsin side of the lake, the alewife forage dynamics apply across the basin and are an encouraging contextual signal for the 2026 season's prospects.

No actionable MI DNR Weekly Fishing Report data was recoverable for this reporting window, so direct comparison to prior-year Michigan-side reports is not possible here. In a typical late-June period, the Grand Haven corridor sees Chinook in the 8-to-15-pound class beginning to show near the river mouth, with trolling depths and speed adjustments shifting as the thermocline establishes. Whether this season is running early, late, or on schedule cannot be confirmed from available data — that honest gap is worth noting before planning a dedicated salmon charter without first checking a current local source or marina report.

For smallmouth bass and walleye in the Grand River mouth corridor, late June historically represents the most predictable window of the summer, with post-spawn fish fully recovered and locked onto structure. This timing aligns with the limited forum-level activity reported for the area this season.