Dumfries, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dumfries, a town in Prince William County, Virginia.
Today
81°F
Partly Sunny
Partly sunny, with a high near 81. Northeast wind around 7 mph.
7-day forecast for Dumfries
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Partly Sunny | 7 mph NE | 4% |
| Tonight | 67°F | Mostly Cloudy | 6 mph SE | 12% |
| Sunday | 86°F | Mostly Cloudy then Chance Rain Showers | 3 to 10 mph S | 30% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 2 to 8 mph W | 65% |
| Monday | 74°F | Chance Rain Showers | 9 mph NE | 43% |
| Monday Night | 60°F | Chance Rain Showers | 7 mph NE | 42% |
| Tuesday | 68°F | Rain Showers Likely | 8 to 14 mph NE | 57% |
| Tuesday Night | 56°F | Rain Showers Likely | 9 to 14 mph NE | 57% |
| Wednesday | 64°F | Chance Rain Showers | 12 to 15 mph NE | 51% |
| Wednesday Night | 56°F | Chance Rain Showers | 9 to 15 mph NE | 50% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 10 to 14 mph N | 42% |
| Thursday Night | 54°F | Chance Showers And Thunderstorms | 6 to 13 mph N | 38% |
| Friday | 70°F | Slight Chance Rain Showers | 10 mph N | 20% |
| Friday Night | 54°F | Mostly Cloudy | 5 to 9 mph N | 14% |
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
7b
More local growing data for Dumfries: nearby ZIP 22026 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
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Bull Run
Bull Run Mountain Estates
Cherry Hill
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Haymarket
Independent Hill
Innovation
Lake Ridge
Laurel Hill
Leesylvania
Linton Hall
Manassas Park
Montclair
Nokesville
Occoquan
Potomac Mills
Quantico
Quantico Base
Sudley
Triangle
Woodbridge
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 Sep 19, 2026.