Jefferson River At Parsons Bdg near Silver Star
Jefferson River · Rockies · USGS gage 06027600
Trout (marginal) (summer mean 20.2°C — trout, warm in summer).
Water
n/a
Flow
n/a
Air
81°F
Sky
3%
Predicted hatches · 2026-06-16
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.