Chantilly, VA Weather & Growing Conditions
This Afternoon
85°F
Sunny
Sunny, with a high near 85. North wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Sunny | 10 mph N | 10% |
| Tonight | 61°F | Mostly Cloudy | 9 mph N | 10% |
| Saturday | 79°F | Partly Sunny | 7 mph E | 10% |
| Saturday Night | 67°F | Mostly Cloudy | 7 mph SE | 10% |
| Sunday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 13 mph S | 47% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 3 to 9 mph NW | 61% |
| Monday | 75°F | Chance Rain Showers | 7 to 12 mph NE | 41% |
| Monday Night | 61°F | Rain Showers Likely | 6 to 10 mph NE | 58% |
| Tuesday | 67°F | Rain Showers Likely | 12 mph NE | 62% |
| Tuesday Night | 56°F | Rain Showers Likely | 12 mph NE | 62% |
| Wednesday | 63°F | Rain Showers Likely | 12 mph NE | 56% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 10 mph NE | 52% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 12 mph N | 52% |
| Thursday Night | 55°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 35% |
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 Sep 19, 2026.