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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Biscuit Bk Above Pigeon Bk At Frost Valley

Biscuit Bk · Northeast · USGS gage 01434025

Coldwater (summer mean 15.3°C — prime coldwater).

Water
n/a
Flow
n/a
Air
60°F
Sky
29%
Predicted hatches · 2026-06-15

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.