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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

68°F

20°C

Humidity 51%
Wind Speed SW 9 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 9 May 12:52 pm EDT
Extended Forecast for

Reston VA

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 72. Southwest wind around 9 mph. Chance of precipitation is 50%.

    High: 72 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely after 11pm. Mostly cloudy, with a low around 52. North wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely before 2pm. Mostly cloudy, with a high near 63. North wind around 8 mph. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 72. Southwest wind around 9 mph. Chance of precipitation is 50%.
Tonight
Partly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 11pm. Mostly cloudy, with a low around 52. North wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely before 2pm. Mostly cloudy, with a high near 63. North wind around 8 mph. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 71.
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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:
10:55 am EDT May 9, 2026
Forecast Valid:
1pm EDT May 9, 2026-6pm EDT May 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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