Chantilly, VA Weather & Growing Conditions
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Tonight | 62°F | Mostly Cloudy then Chance Rain Showers | 6 to 9 mph S | 43% |
| Thursday | 75°F | Chance Rain Showers | 8 to 12 mph S | 39% |
| Thursday Night | 61°F | Chance Rain Showers | 2 to 8 mph SW | 53% |
| Friday | 70°F | Chance Light Rain | 5 mph N | 52% |
| Friday Night | 50°F | Chance Light Rain then Partly Cloudy | 2 to 8 mph NW | 29% |
| Saturday | 63°F | Mostly Sunny | 8 to 14 mph NW | 6% |
| Saturday Night | 42°F | Mostly Clear | 12 mph NW | 5% |
| Sunday | 61°F | Mostly Sunny | 7 to 12 mph NW | 1% |
| Sunday Night | 40°F | Mostly Clear | 7 mph NW | 5% |
| Monday | 62°F | Sunny | 7 to 14 mph NW | 5% |
| Monday Night | 37°F | Mostly Clear | 2 to 8 mph W | 4% |
| Tuesday | 65°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 Chantilly, VA
Last spring frost
Apr 15
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7b
Explore more for Chantilly, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Washington Dc Dulles Ap, Va (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.