Harman US

Ashburn, VA Weather & Growing Conditions

This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. South wind around 10 mph, with gusts as high as 20 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 75°F Mostly Sunny 10 mph S 0%
Tonight 64°F Mostly Cloudy then Chance Light Rain 8 to 12 mph S 53%
Thursday 76°F Chance Light Rain then Mostly Cloudy 13 mph S 34%
Thursday Night 57°F Mostly Cloudy then Chance Light Rain 0 to 10 mph W 28%
Friday 70°F Slight Chance Light Rain 2 to 6 mph N 20%
Friday Night 47°F Slight Chance Light Rain then Partly Cloudy 2 to 12 mph N 16%
Saturday 62°F Mostly Sunny 12 to 16 mph NW 7%
Saturday Night 42°F Mostly Clear 14 mph NW 3%
Sunday 62°F Mostly Sunny 8 to 14 mph NW 2%
Sunday Night 40°F Mostly Clear 10 mph NW 0%
Monday 63°F Sunny 8 to 14 mph NW 0%
Monday Night 38°F Mostly Clear 3 to 8 mph W 0%
Tuesday 67°F Sunny 6 to 9 mph SW 1%
Tuesday Night 40°F Mostly Clear 5 to 8 mph W 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Ashburn, VA

Last spring frost
Apr 13
First fall frost
Oct 26
Growing season
195 days
Hardiness zone
7a

Explore more for Ashburn, VA: full frost dates · planting calendar · Virginia frost dates

Climate data from the nearest NOAA station, Wfo Sterling, Va (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.