Live Weather & Forecast
Weather in Chantilly
Virginia, United States · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
60°F / Feels 60°F
Overcast
Chantilly, Virginia
🌙 Nighttime
Updated: 2026-04-13 04:30
Humidity
78%
Wind
21.6 km/h SSW
Wind Gust
36 km/h
Pressure
1021 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
14.1°C
Wind Degree
195°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
184.9 μg/m³
NO₂
5.4 μg/m³
O₃
93 μg/m³
SO₂
4.5 μg/m³
PM 2.5
10.5 μg/m³
PM 10
10.8 μg/m³
Weather Alerts 2
Met
· Moderate · Expected
Special Weather Statement issued April 12 at 1:43PM EDT by NWS Baltimore MD/Washington DC
The combination of 10 hour fuel moistures around 8 to 10 percent relative humidities around 30 to 39 percent, and wind gusts around 20 to 25 mph will lead to an increased risk for the rapid spread of wildfires on Monday. Residents and visitors are urged to properly dispose of cigarette butts, matches, and any other flammable items in appropriate containers. Additionally, exercise caution if opera...
Met
· Unknown · Unknown
Monitoring message only. Please disregard.
Monitoring message only. Please disregard.
Today's Hourly Forecast
24-hour breakdown for Chantilly, Virginia
12 AM
15°
Clear
1 AM
15°
Clear
2 AM
16°
Clear
3 AM
16°
Clear
4 AM
16°
Overcast
5 AM
17°
Clear
6 AM
17°
Clear
7 AM
18°
Sunny
8 AM
19°
Sunny
9 AM
21°
Sunny
10 AM
25°
Sunny
11 AM
28°
Sunny
12 PM
29°
Sunny
1 PM
24°
Patchy rain nearby
2 PM
22°
Light rain
3 PM
21°
Overcast
4 PM
22°
Cloudy
5 PM
22°
Moderate rain at times
6 PM
23°
Cloudy
7 PM
22°
Sunny
8 PM
21°
Clear
9 PM
20°
Clear
10 PM
19°
Clear
11 PM
19°
Clear
3-Day Forecast
Daily overview for Chantilly, Virginia
Today
Moderate rain
31°
/
15°
🌧️ 74% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 23 km/h
🌧️ Total precip: 5.03 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
32°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 60%
💨 Max wind: 16.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:46 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Sunny
34°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 49%
💨 Max wind: 15.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 06:33 AM
🌇 Sunset: 07:47 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Chantilly
Plan your trip to Chantilly, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Chantilly?
Current conditions in Chantilly: Overcast, temperature 16°C, humidity 78%.
What is the best time to visit Chantilly?
The best time to visit Chantilly is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Chantilly?
Chantilly is located at approximately 38.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Chantilly?
The wettest period in Chantilly is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Chantilly?
For visits to Chantilly during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Chantilly in?
Chantilly is located in United States, in the state of Virginia.
What are the public holidays in Chantilly in 2026?
View the 2026 public holidays for Chantilly on our Holidays page.
What are the GPS coordinates used for the weather forecast in Chantilly?
The weather forecast for Chantilly uses coordinates 38.8942, -77.4312.