Weather in Potomac
Potomac has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 18°, and about 20 inches of snow falls in a normal winter. A typical November afternoon reaches 51°, and nights fall to 32°.
Getting the latest forecast from the National Weather Service…
Where today sits in Potomac’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Potomac.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Potomac itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Hoopeston, IL (13 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.