Dumfries, VA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Dumfries, a town in Prince William County, Virginia.

This Afternoon

77°F

Mostly Sunny

Mostly sunny, with a high near 77. South wind 6 to 9 mph.

7-day forecast for Dumfries

When	Temp	Forecast	Wind	Precip
This Afternoon	77°F	Mostly Sunny	6 to 9 mph S	1%
Tonight	62°F	Mostly Cloudy then Chance Rain Showers	7 mph S	25%
Thursday	76°F	Chance Rain Showers	7 to 10 mph S	38%
Thursday Night	63°F	Showers And Thunderstorms Likely	2 to 6 mph S	64%
Friday	72°F	Showers And Thunderstorms Likely then Light Rain Likely	5 mph NW	73%
Friday Night	51°F	Chance Light Rain then Mostly Cloudy	1 to 7 mph N	42%
Saturday	65°F	Mostly Sunny	7 to 10 mph NW	5%
Saturday Night	43°F	Mostly Clear	6 to 9 mph NW	5%
Sunday	63°F	Sunny	5 to 9 mph NW	2%
Sunday Night	41°F	Mostly Clear	6 mph W	5%
Monday	64°F	Sunny	6 to 12 mph NW	5%
Monday Night	39°F	Mostly Clear	2 to 7 mph W	5%
Tuesday	67°F	Sunny	3 to 7 mph SW	2%
Tuesday Night	41°F	Mostly Clear	5 mph W	1%

Forecast source: National Weather Service (api.weather.gov) for Dumfries (38.567, -77.322). Updated through the day.

Growing snapshot for Dumfries

Last spring frost

Mar 28

First fall frost

Nov 8

Growing season

226 days

Hardiness zone

More local growing data for Dumfries: nearby ZIP 22026 weather · frost dates · planting calendar · Virginia frost dates

Nearby towns & communities

Buckhall Bull Run Bull Run Mountain Estates Cherry Hill County Center Dale City Gainesville Haymarket Independent Hill Innovation Lake Ridge Laurel Hill Leesylvania Linton Hall Manassas Park Montclair Nokesville Occoquan Potomac Mills Quantico Quantico Base Sudley Triangle Woodbridge

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Climate data from the nearest NOAA station, Quantico Mcas, Va (4.2 mi from Dumfries). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.