Measured · 23 gauges reporting · 3:23 PM EDT on September 28, 2026
Rogue, Pine, Paint and the spring creeks of the southern half — smaller water, earlier season.
Southern Lower Peninsula water is running 57–67°F across 23 gauges reporting in the last 6 hours. 16 are in prime shape — Little Muskegon River at 57°F, Wolf Creek at 58°F, Hog Creek at 59°F, and others below. 7 sit in the 64–70°F transitional band, where the fish are catchable early and should be left alone by mid-afternoon. Air holds in the 70s through Thu, and water should hold about where it is, and 0.6″ of rain in the window will bump flows and cool the freestones.
Every temperature behind the clock on this page is a measurement — USGS water temperature at a real gauge, taken within 6 hours of the reading's own hour. Hours ahead of the last measurement are projected from the hourly air forecast and are labelled as projected. That is also why the lists below are only as long as the gauge network is dense — a river with no gauge on it has nothing measured to report. 1 MI gauges had no reading in the last 6 hours.
Data refreshed nightly, current-hour rendered live — this page carries 24 hours of measured water behind 3:23 PM EDT on September 28, 2026 and 48 ahead of it, and shows the hour you are reading it in.
The bands are the map's own: the same breaks BirdTrout paints water with, so a stream that is green here is green there.
under 64°F — trout are feeding
and 1 more
64–70°F — fish early, keep fights short
over 70°F, or under 40°F — leave it alone
Nothing in this band right now.
The bugs whose peak covers this month in Southern Lower Peninsula, with the water temperature each is active in. Peak only — a shoulder month is on the bug's own page.
Where each run sits on the five-zone line from open lake to upstream, modelled from river temperature, flow and the calendar. A stage, not a sighting.
1 more corridor is still staging offshore.
| River | Water | Species | Holding | Confidence |
|---|---|---|---|---|
| Kalamazoo River | 61.9°F | Chinook | mouth | moderate |
| Coho | mouth | moderate | ||
| Steelhead (fall) | bay | low |
Air holds in the 70s through Thu, and water should hold about where it is, and 0.6″ of rain in the window will bump flows and cool the freestones.
| Day | High | Low | Rain |
|---|---|---|---|
| Mon 2026-09-28 | 74°F | 46°F | 0.00″ |
| Tue 2026-09-29 | 76°F | 49°F | 0.00″ |
| Wed 2026-09-30 | 72°F | 57°F | 0.04″ |
| Thu 2026-10-01 | 68°F | 62°F | 0.60″ |
Air, not water. Water follows smoothed air with a sensitivity well below one — a spring creek barely feels a hot afternoon and a shallow freestone nearly tracks it — so this table is a direction, and the measurements above are the answer.
5,656 classified stream miles in Southern Lower Peninsula, by MDNR designated trout stream type. This is the standing classification, not today's temperature — it is what the water is normally, which is the context the readings above sit in.
| Class | Miles |
|---|---|
| Type 1 | 4,421 |
| Type 4 | 971 |
| Type 3 | 242 |
| Type 2 | 21 |
Rivers here with a full BirdTrout page — survey history, access, public land and regulations — whether or not a gauge is reporting on them this hour.