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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Sultan River Below Powerplant Near Sultan

Sultan River · Pacific NW · USGS gage 12138160

Coldwater (summer mean 12.4°C — prime coldwater).

Water
n/a
Flow
n/a
Air
57°F
Sky
100%
Pressure
30.06 in
Wind
5 mph
Predicted hatches · 2026-09-15

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.