Potomac Mills, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potomac Mills, a community in Prince William County, Virginia.
Today
87°F
Partly Sunny
Partly sunny, with a high near 87. East wind around 7 mph.
7-day forecast for Potomac Mills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Partly Sunny | 7 mph E | 13% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 7 mph E | 72% |
| Wednesday | 88°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 69% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 7 mph S | 47% |
| Thursday | 92°F | Mostly Sunny | 7 to 12 mph S | 10% |
| Thursday Night | 74°F | Partly Cloudy | 6 to 10 mph SW | 10% |
| Friday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph SW | 33% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 41% |
| Saturday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 48% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 48% |
| Sunday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 19% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 19% |
| Monday | 93°F | Mostly Sunny | 2 to 6 mph W | 9% |
| Monday Night | 74°F | Partly Cloudy | 6 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov) for Potomac Mills (38.657, -77.299). Updated through the day.
Growing snapshot for Potomac Mills
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
197 days
Hardiness zone
7b
More local growing data for Potomac Mills: nearby ZIP 22192 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Manassas, Va (10 mi from Potomac Mills). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.