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.

A Few Clouds

59°F

15°C

Humidity 46%
Wind Speed NW 9 G 20 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 7 Jan 3:52 pm EST
Extended Forecast for

Reston VA

  • Tonight

    Tonight: Mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. South wind 5 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain after 1pm. Cloudy, with a high near 58. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 54. South wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    Low: 54 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain. High near 63. Chance of precipitation is 100%.

    High: 63 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 40. South wind 5 to 7 mph.
Friday
A chance of rain after 1pm. Cloudy, with a high near 58. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 54. South wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Saturday
Rain. High near 63. Chance of precipitation is 100%.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
3:53 pm EST Jan 7, 2026
Forecast Valid:
4pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
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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