Harman US

Ashburn, VA Weather & Growing Conditions

This Afternoon
79°F
Partly Sunny
Partly sunny, with a high near 79. East wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 79°F Partly Sunny 5 mph E 9%
Tonight 65°F Mostly Cloudy then Slight Chance Rain Showers 8 mph SE 15%
Sunday 84°F Chance Rain Showers 8 to 13 mph S 43%
Sunday Night 61°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 3 to 12 mph NW 70%
Monday 70°F Chance Rain Showers 8 to 12 mph N 40%
Monday Night 56°F Chance Rain Showers 6 to 9 mph NE 47%
Tuesday 64°F Rain Showers Likely 13 mph NE 65%
Tuesday Night 53°F Rain Showers Likely 13 mph NE 65%
Wednesday 60°F Chance Rain Showers 13 mph NE 53%
Wednesday Night 53°F Chance Showers And Thunderstorms 12 mph NE 47%
Thursday 62°F Chance Showers And Thunderstorms 13 mph NE 45%
Thursday Night 52°F Chance Showers And Thunderstorms 6 to 10 mph N 39%
Friday 68°F Slight Chance Rain Showers 12 mph N 20%
Friday Night 51°F Mostly Cloudy then Slight Chance Rain Showers 6 to 10 mph N 15%

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 (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.