Reston, VA Weather & Growing Conditions
Today
75°F
Mostly Sunny
Mostly sunny, with a high near 75. South wind around 10 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 10 mph S | 1% |
| Tonight | 62°F | Mostly Cloudy then Chance Rain Showers | 9 mph S | 44% |
| Thursday | 74°F | Chance Rain Showers | 8 to 12 mph S | 41% |
| Thursday Night | 61°F | Chance Rain Showers | 2 to 8 mph SW | 52% |
| Friday | 70°F | Chance Light Rain | 5 mph N | 52% |
| Friday Night | 49°F | Chance Light Rain then Partly Cloudy | 2 to 7 mph NW | 29% |
| Saturday | 62°F | Mostly Sunny | 8 to 14 mph NW | 6% |
| Saturday Night | 42°F | Mostly Clear | 10 mph NW | 5% |
| Sunday | 60°F | Mostly Sunny | 7 to 12 mph NW | 1% |
| Sunday Night | 41°F | Mostly Clear | 8 mph NW | 5% |
| Monday | 61°F | Sunny | 8 to 14 mph NW | 5% |
| Monday Night | 38°F | Mostly Clear | 2 to 8 mph W | 4% |
| Tuesday | 64°F | Sunny | 3 to 8 mph SW | 2% |
| Tuesday Night | 41°F | Mostly Clear | 6 mph W | 0% |
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 (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.