Big Hole River below Big Lake Creek At Wisdom
Big Hole River · Rockies · USGS gage 06024450
Trout (marginal) (summer mean 17.8°C — trout, warm in summer).
Water
39°F
Flow
118 cfs
Air
27°F
Sky
94%
Pressure
29.92 in
Wind
3 mph
Predicted hatches · 2026-10-30
PredictedMidgeChironomidae0.50
Predicted by conditions; no reports yet. water 3.7°C (39°F) sits in 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.