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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Beaver Creek above Conf near Fork Humboldt River near Halleck

Beaver Creek · Sierra / West · USGS gage 10317480

Trout (marginal) (summer mean 18.5°C — trout, warm in summer).

Water
n/a
Flow
0 cfs
Air
69°F
Sky
93%
Pressure
29.71 in
Wind
21 mph
Predicted hatches · 2026-09-17

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.