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Potomac River (Maryland) — a popular fishing spot. About 275 km long. Close by — Bethesda, Silver Spring and Hagerstown. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.
Partly cloudy: 73–93 °F
Recorded 2 catches here. Most commonly caught: Largemouth bass, Rainbow trout. Peak season: April–June.
Measured river conditions are available for Potomac River: current gauge height, streamflow, and water temperature when reported by the source.
USGS gauge POTOMAC RIVER AT SHEPHERDSTOWN, WV, 13 mi away · measured 2026-09-02 09:30 · data source · provisional data, subject to revision
Wednesday, September 2
The bite is moderate — fish feed in short bursts. Pressure is dropping — this usually boosts the bite.
Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.
In clear water, natural colors work best: small jig or minnow bait.
It's a hot day — a hat, sunglasses, and plenty of water are a must.
An average day — best chances during peak windows.
The computed water temperature is around 78 °F — warmer than the 57–75 °F comfort range for Black crappie: in the heat it drops deeper and feeds less often.
Black crappie works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is flat: it moves no more than 0.03 inHg over the day, so the weather isn't shifting today's bite.
One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.
September is an active season for Black crappie here.
These are the same values the bite curve above was computed from. How the forecast works
Clear · feels like +103°
The day is 2 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.
What are solunar periods?