Chris Izworski’s Michigan Trout Daily weekly overview for Sunday, August 2: here is what the gauges actually show across the state right now. We are deep into August, which means trico mornings, low and clear water across most of the state, and afternoons too hot for serious fishing. The data tells a story of a state split between a few blown-out rivers in the north and a much larger region running at or below normal. If you are planning your week, the message is clear: focus on stealth, small flies, and the cooler morning hours. Several excellent options exist, but they require you to be in the water before the sun climbs.
Upper Peninsula: Cold and Mixed
The Upper Peninsula shows the most dramatic swings. Two rivers are substantially blown out. The Sturgeon River near Nahma is running at 631 percent of median, which is not fishable; the Tahquamenon River sits at 266 percent, also too high for reliable trout work. If you have been eyeing those two, wait. The good news is that much of the rest of the UP is either near normal or running cool enough to fish well. The Ontonagon River is at 109 percent of median, in that sweet spot where flows are stable and trout are not buried in deep pockets. The Salmon Trout River at 112 percent is similarly cooperative. The Iron River holds steady at 105 percent. The Sturgeon River in the UP proper, separate from the Nahma version, is running at 90 percent, which is low but fishable given the cold water.
Temperature data from the UP tells you where the coldest refuge lies. The East Branch Salmon Trout River is the coldest stream reporting anywhere in the state at 52 degrees Fahrenheit. That is August water that will hold trout in the water column all day. The Presque Isle River, by contrast, is the warmest UP stream at 71 degrees, which is getting toward the edge of comfort for lake-run fish. Four gauges in the UP are offline, so you may have better conditions than the data suggests on some stretches, but do not assume it. Plan around what you can verify.
Northern Lower Peninsula: High Flows and One Gem
The Northern Lower Peninsula is where the blow-outs cluster. The Pigeon River is running at 272 percent of median, completely blown. The Thunder Bay River is at 182 percent, also out of the question. The AuSable River, Michigan’s most famous trout water, is running at 134 percent, which is high but fishable if you know what you are doing; expect to work harder for position and to use larger, darker flies than you might want. The Manistee River sits at 154 percent, similarly elevated but not impossible.
The Pere Marquette River is running at 105 percent of median, right at normal, and this is where the real opportunity lies this week. Normal flows in early August mean stable conditions, predictable trout location, and the kind of water that responds well to small tricos in the morning. The Pine River, at 107 percent, is also near normal. The Jordan River is at 127 percent, which is on the high side but still fishable for someone with proper technique. The Platte River holds at 123 percent, another reasonable option if you know the water or can scout it carefully on arrival.
The Muskegon River is running low at 87 percent of median, and while low water can make trout spooky, the Muskegon is big enough that 87 percent still means plenty of flow. This is a week to target early morning, work the deeper pools, and exercise extreme stealth. The Maple River, at 27 percent of median, is essentially a creek right now and not worth your time unless you live on it and know its quirks intimately. Water temperatures in the NLP range from 57 degrees on the Pine River, which is excellent for early August, to 72 degrees on the Muskegon, which is pushing warm. Seven gauges are offline in this region, so conditions on unmeasured streams may vary considerably from nearby reported rivers.
Southern Lower Peninsula: No Data
The Southern Lower Peninsula has no gauged rivers in the Michigan Trout Report network, which means you are working without current flow or temperature data. This is the zone where you should call local shops, check with anglers on the ground, or rely on your own scouting before committing to a drive. August conditions in the south tend to warm faster than in the north, and low water is typical, so plan accordingly.
Where I Would Go This Week
If I had one morning free this week, I would be on the Pere Marquette River at first light. It is running at normal flows, which means stable lies and predictable fish behavior in early August. The trico hatch should be happening in the morning hours, and normal water means those flies will draw responses from fish that are not exhausted by high water or terrified of being swept away. Bring size 20 and 22 tricos, fish the flats before 8 a.m., and be ready to stop fishing once the afternoon sun hits the water. If the Pere Marquette feels crowded, the Pine River at 107 percent offers similar logic with less traffic. Both rivers are reporting temperatures in the high 50s, which is honest-to-god cold for August and means trout will feed throughout the morning hours.
For specific river-by-river gauge readings, hatch reports, and detailed flow conditions, visit https://michigantroutreport.com.