National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

16°F

-9°C

Humidity 65%
Wind Speed Calm
Barometer 30.27 in (1025.5 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 9 Dec 4:52 am EST
Extended Forecast for

Reston VA

  • Today

    Today: Mostly sunny, with a high near 35. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 35. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
Partly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 31. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 39. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 38.
Friday Night
A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 16.
Monday
Mostly sunny, with a high near 31.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
3:53 am EST Dec 9, 2025
Forecast Valid:
5am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation