Reston, VA Weather & Growing Conditions
This Afternoon
75°F
Partly Sunny
Partly sunny, with a high near 75. South wind around 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Partly Sunny | 10 mph S | 1% |
| Tonight | 63°F | Mostly Cloudy then Chance Light Rain | 7 to 12 mph S | 47% |
| Thursday | 75°F | Chance Light Rain then Mostly Cloudy | 9 to 13 mph S | 31% |
| Thursday Night | 58°F | Mostly Cloudy then Chance Light Rain | 2 to 8 mph SW | 33% |
| Friday | 69°F | Slight Chance Light Rain | 5 mph N | 23% |
| Friday Night | 49°F | Slight Chance Light Rain then Partly Cloudy | 2 to 10 mph N | 21% |
| Saturday | 61°F | Mostly Sunny | 10 to 15 mph NW | 7% |
| Saturday Night | 43°F | Mostly Clear | 10 to 14 mph NW | 4% |
| Sunday | 61°F | Mostly Sunny | 7 to 14 mph NW | 2% |
| Sunday Night | 42°F | Mostly Clear | 6 to 10 mph NW | 0% |
| Monday | 62°F | Sunny | 7 to 13 mph NW | 0% |
| Monday Night | 40°F | Mostly Clear | 2 to 6 mph W | 0% |
| Tuesday | 66°F | Mostly Sunny | 5 to 8 mph SW | 1% |
| Tuesday Night | 43°F | Mostly Clear | 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Reston, VA
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
7b
Explore more for Reston, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Vienna, Va (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.