Arroyo Valle near Livermore
Arroyo Valle · Sierra / West · USGS gage 11176500
Trout (marginal) (summer mean 20.4°C — trout, warm in summer).
Water
59°F
Flow
8 cfs
Air
59°F
Sky
100%
Pressure
30.12 in
Wind
3 mph
Predicted hatches · 2026-11-02
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.