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
33 cfs
Air
67°F
Sky
100%
Pressure
29.87 in
Wind
13 mph
Predicted hatches · 2026-09-15
PredictedSpotted / Summer CaddisHydropsyche spp.0.30
water 13.2°C (56°F) is warming toward the prime band (14-19°C); shoulder of the season; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis
PredictedMidgeChironomidae0.23
water 13.2°C (56°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
PredictedBlue-Winged OliveBaetis spp.0.17
water 13.2°C (56°F) is cooling past the prime band (6-11°C); shoulder of the season; overcast skies favor it; light rain helps; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.