Chantilly Weather Forecast
- 39
- 59
 - Sunny 
- 41
- 62
 - Partly Sunny 
- 41
- 62
 - Partly Sunny 
- 44
- 61
 - Mostly Sunny 
- 38
- 61
 - Mostly Sunny 
- 46
- 64
 - Slight Chance Rain Showers 
- 37
- 59
 - Mostly Sunny 
Today 31 Oct Eastern Loudoun
Sunny, breezy with Highs in the upper 50s. West Winds 20 to 25 Mph with Gusts up to 40 Mph.
Tonight 31 Oct Eastern Loudoun
Clear. Lows around 40. West Winds 15 to 20 Mph with Gusts up to 40 Mph, Diminishing to 5 to 10 Mph after midnight.
Chantilly Temperature Statistics
October Temperature
Washington/Dulles International Airport, DC (2.5 miles)
- Lowest 25 October, 202530 °F
- Average October57.7 °F
- Highest 6 October, 202582.9 °F
Climate (2020–Present)
Washington/Dulles International Airport, DC (2.5 miles)
- Average Low 2020–202547.8 °F
- Average 2020–202558.3 °F
- Average High 2020–202568.6 °F