Weber River At Gateway
Weber River · Rockies · USGS gage 10136500
Trout (marginal) (summer mean 16.6°C — trout, warm in summer).
Water
55°F
Flow
45 cfs
Air
46°F
Sky
100%
Pressure
29.89 in
Wind
3 mph
Predicted hatches · 2026-10-30
PredictedBlue-Winged OliveBaetis spp.0.46
Predicted by conditions; no reports yet. water 12.8°C (55°F) is cooling past the prime band (6-11°C); peak season; overcast skies favor it; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PredictedMidgeChironomidae0.27
water 12.8°C (55°F) is cooling past the prime band (1-10°C); shoulder of the season; watch midday, especially cold months.
flies: Zebra Midge #18-22, Griffith's Gnat, Disco Midge
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.