Middle Fork Willamette River near Oakridge
Middle Fork Willamette River · Pacific NW · USGS gage 14144800
Coldwater (summer mean 14.4°C — prime coldwater).
Water
41°F
Flow
309 cfs
Air
42°F
Sky
100%
Pressure
29.89 in
Wind
3 mph
Predicted hatches · 2026-10-30
PredictedBlue-Winged OliveBaetis spp.0.69
Predicted by conditions; no reports yet. water 5.2°C (41°F) is warming toward 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
PredictedMidgeChironomidae0.50
Predicted by conditions; no reports yet. water 5.2°C (41°F) sits in 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.