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.

Light Rain

66°F

19°C

Humidity 90%
Wind Speed Calm
Barometer 29.90 in (1012.3 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 14 May 10:52 pm EDT
Extended Forecast for

3 Miles SSW Ashburn VA

Flood Watch May 14, 10:59pm until May 15, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch May 14, 10:59pm until May 15, 12:00am

    NOW until 12:00am Thu

    Flood Watch

  • Tonight

    Low: 63 °F

    Showers and
    Patchy Fog
    then
    Scattered
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Patchy fog after 11pm. Low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Ashburn VA
 39°N 77.49°W (Elev. 299 ft)
Last Update:
10:30 pm EDT May 14, 2025
Forecast Valid:
10pm EDT May 14, 2025-6pm EDT May 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation