Middle Fork Willamette River Near Dexter
Middle Fork Willamette River · Pacific NW · USGS gage 14150000
Coldwater (summer mean 15.8°C — prime coldwater).
Water
58°F
Flow
1,250 cfs
Air
46°F
Sky
30%
Pressure
29.89 in
Wind
2 mph
Predicted hatches · 2026-10-30
PredictedMidgeChironomidae0.15
water 14.2°C (58°F) is cooling past the prime band (1-10°C); shoulder of the season; 8 days sustained ≥0°C; 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.