Lake trout and salmon keep trolling strong through smoky North Shore days

What's biting

What's next

If the pattern from the past several weekly MN DNR Lake Superior Summer Fishing reports holds, look for surface temps to keep swinging with the wind rather than settling into a steady summer curve. Southwest breezes have repeatedly knocked Duluth-area surface readings down 10-15 degrees within a single week, so plan trolling depths around the coldest recent read rather than the warmest one. The thermocline bite that's been holding Lake Trout, Coho, and the occasional Chinook in the 20-60 foot range over deeper structure should stay productive into the coming week; if wind lays down and the surface warms back toward the upper 60s reported July 16, expect fish to push slightly shallower and stick baits worked higher in the column to start earning more bites.

Wildfire smoke is the wildcard. Great Lakes Now's coverage of the regional haze noted Minneapolis air quality climbing into hazardous territory alongside Detroit and Chicago this week, and the MN DNR report specifically flagged reduced visibility on the lake from the smoke. Anyone running the North Shore should build in a visibility check before running offshore, especially early morning when haze tends to sit lowest. If the smoke clears behind the next weather system, expect normal sightlines and boat traffic to return to the lower shore stations between Duluth and Two Harbors.

Inland and around the Twin Cities, the open-water pattern described by Fishing the Midwest, anglers leaning on forward-facing sonar to locate walleye suspended off traditional structure, should keep paying off through the week; that technique tends to matter most as fish scatter in summer stratification rather than holding tight to points and weedlines. With the moon in its First Quarter phase, expect a modest uptick in low-light feeding activity around dawn and dusk over the next few days as it builds toward full. Weekend anglers should prioritize early starts on Lake Superior to beat both the thermocline warm-up and any smoke buildup that tends to thicken as the day goes on.

Context

By late July, the North Shore has typically settled into its summer pattern: the spring steelhead run and smelt run that the MN DNR North Shore Fishing Report tracked through April and May wrapped up on the normal schedule, and the fishery has transitioned into the deep-trolling Lake Trout, Coho, and Chinook Salmon bite that the MN DNR Lake Superior Summer Fishing reports have documented weekly since mid-June. Fish sizes and depths reported this month (18-31 inch Lake Trout, mid-to-upper-teens Coho, occasional Chinook over 25 inches, all holding 20-60 feet down over 70-150 feet of water) are consistent with a normal, on-schedule summer program for this fishery; nothing here reads as unusually early or late.

What is notable this year is the wildfire smoke. Great Lakes Now's reporting on regional haze blanketing the Midwest, with Minneapolis ranking among the worst air quality readings in the country alongside Detroit and Toronto, is an atypical overlay on an otherwise typical summer bite, and the MN DNR's own report cited reduced on-lake visibility from the smoke. Beyond that, the angler intel available doesn't give a clean year-over-year comparison for the Twin Cities inland lake bite, so we can't say with confidence whether the summer walleye pattern described by Fishing the Midwest is running ahead of or behind a typical season this year.