Black Earth Creek At Black Earth
Black Earth Creek · Driftless / Midwest · USGS gage 05406500
Trout (marginal) (summer mean 18.1°C — trout, warm in summer).
Water
56°F
Flow
38 cfs
Air
39°F
Sky
1%
Pressure
30.33 in
Wind
3 mph
Predicted hatches · 2026-10-30
PredictedBlue-Winged OliveBaetis spp.0.24
water 13.2°C (56°F) is cooling past the prime band (6-11°C); peak season; bright high pressure — tougher; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PredictedMidgeChironomidae0.21
water 13.2°C (56°F) is cooling past the prime band (1-10°C); shoulder of the season; bright high pressure — tougher; 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.