NimbocastChantilly, VA Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Chantilly, Fairfax County, Virginia.
Updated Jul 29, 2026, 5:03 PM local time · Radar refreshes every 5 minutes
🌤️
Chantilly
81°F
Wind 14 mph
Humidity 50%
Cloud cover 38%
UV index 7
Alerts 0
Active alerts
✓
No active National Weather Service alerts for Chantilly, VA.
Chantilly weather radar
Light
Heavy
Next 24 hours
Now
🌤️
81°F
6 PM
☁️
80°F
7 PM
☀️
78°F
1%
8 PM
☀️
74°F
1%
9 PM
☀️
71°F
3%
10 PM
⛅
70°F
3%
11 PM
☁️
70°F
1%
12 AM
⛅
70°F
1 AM
☀️
68°F
2 AM
☀️
67°F
3 AM
☀️
66°F
4 AM
☀️
65°F
5 AM
☀️
64°F
6 AM
☀️
63°F
7 AM
☀️
64°F
8 AM
☀️
67°F
9 AM
☀️
70°F
10 AM
☀️
73°F
11 AM
☀️
76°F
12 PM
☀️
79°F
1 PM
🌤️
82°F
2 PM
⛅
83°F
3 PM
⛅
83°F
4 PM
🌤️
83°F
1%
7-day forecast
Today
Jul 29
☁️
82°F
68°F
6%
Thu
Jul 30
⛅
84°F
63°F
4%
Fri
Jul 31
☁️
89°F
65°F
2%
Sat
Aug 1
☁️
92°F
67°F
14%
Sun
Aug 2
🌦️
84°F
72°F
45%
Mon
Aug 3
🌧️
77°F
69°F
45%
Tue
Aug 4
☁️
77°F
65°F
22%
Weather near Chantilly
3 mi
Oak Hill, VA4 mi
Centreville, VA4 mi
South Riding, VA6 mi
Herndon, VA7 mi
Reston, VA7 mi
Oakton, VA7 mi
Fairfax, VA8 mi
Sterling, VA
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.