Falls River Near L'Anse
Falls River · Driftless / Midwest · USGS gage 04043097
Trout (marginal) (summer mean 16.6°C — trout, warm in summer).
Water
54°F
Flow
19 cfs
Air
59°F
Sky
100%
Pressure
29.80 in
Wind
18 mph
Predicted hatches · 2026-09-15
PredictedBlue-Winged OliveBaetis spp.0.34
water 12.2°C (54°F) is cooling past the prime band (6-11°C); shoulder of the season; 8 days sustained ≥4°C; overcast skies favor it; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PredictedMidgeChironomidae0.32
water 12.2°C (54°F) is cooling past the prime band (1-10°C); shoulder of the season; 8 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.