▲ Fly Fish ForecastBeta

Hatch predictions for 300+ US rivers — built from live water & weather, then confirmed against real fly-shop reports.

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Snake River near Menan

Snake River · Rockies · USGS gage 13057000

Trout (marginal) (summer mean 17.7°C — trout, warm in summer; very large river (6,140 cfs)).

Water
60°F
Flow
2,000 cfs
Air
38°F
Sky
10%
Pressure
29.89 in
Wind
8 mph
Predicted hatches · 2026-10-30

No bugs scoring above the noise floor right now.

PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.