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.

Partly Cloudy

62°F

17°C

Humidity 41%
Wind Speed S 12 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 20 Mar 11:52 am EDT
Extended Forecast for

Reston VA

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 69. South wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 69 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 63. North wind around 8 mph.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. East wind around 6 mph becoming south after midnight.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Slight Chance
    Rain then
    Chance Rain

  • Monday

    Monday: A chance of rain before 2pm. Partly sunny, with a high near 60. Chance of precipitation is 30%.

    High: 60 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 69. South wind 10 to 16 mph, with gusts as high as 28 mph.
Tonight
Showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 63. North wind around 8 mph.
Saturday Night
Partly cloudy, with a low around 46. East wind around 6 mph becoming south after midnight.
Sunday
Partly sunny, with a high near 76. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Monday
A chance of rain before 2pm. Partly sunny, with a high near 60. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
10:53 am EDT Mar 20, 2026
Forecast Valid:
12pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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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