Manistee River Near Grayling
Manistee River · Driftless / Midwest · USGS gage 04123500
Trout (marginal) (summer mean 16.5°C — trout, warm in summer).
Water
56°F
Flow
279 cfs
Air
62°F
Sky
55%
Pressure
30.14 in
Wind
5 mph
Predicted hatches · 2026-09-16
PredictedSpotted / Summer CaddisHydropsyche spp.0.26
water 13.1°C (56°F) is warming toward the prime band (14-19°C); shoulder of the season; 7 days sustained ≥12°C; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis
PredictedMidgeChironomidae0.23
water 13.1°C (56°F) is cooling past the prime band (1-10°C); shoulder of the season; 7 days sustained ≥0°C; watch midday, especially cold months.
flies: Zebra Midge #18-22, Griffith's Gnat, Disco Midge
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.