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.

Overcast

19°C

67°F

Humidity 91%
Wind Speed Calm
Barometer 1011.4 mb (29.88 in)
Dewpoint 18°C (64°F)
Visibility 16 km
Last update 24 May 1:52 am EDT
Extended Forecast for

Reston VA

  • Overnight

    Overnight: Scattered showers and thunderstorms, mainly before 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 40%.

    Low: 18 °C

    Scattered
    Showers and
    Patchy Fog

  • Friday

    Friday: Isolated showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 28. North wind 3 to 8 km/h. Chance of precipitation is 20%.

    High: 28 °C

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 18. Calm wind. Chance of precipitation is 20%.

    Low: 18 °C

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 27. Calm wind becoming southeast 5 to 10 km/h in the morning. Chance of precipitation is 50%.

    High: 27 °C

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 18. South wind 5 to 8 km/h becoming calm after midnight. Chance of precipitation is 40%.

    Low: 18 °C

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 29. Chance of precipitation is 30%.

    High: 29 °C

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.

    Low: 19 °C

    Chance
    T-storms

  • Memorial Day

    Memorial Day: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.

    High: 27 °C

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °C

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Overnight
Scattered showers and thunderstorms, mainly before 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 40%.
Friday
Isolated showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 28. North wind 3 to 8 km/h. Chance of precipitation is 20%.
Friday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 18. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 27. Calm wind becoming southeast 5 to 10 km/h in the morning. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 18. South wind 5 to 8 km/h becoming calm after midnight. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 29. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Memorial Day
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Tuesday
A chance of showers after 8am. Mostly sunny, with a high near 25. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 15. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly sunny, with a high near 23. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly clear, with a low around 12. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 22.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.96°N 77.33°W (Elev. 325 m)
Last Update:
1:29 am EDT May 24, 2024
Forecast Valid:
2am EDT May 24, 2024-6pm EDT May 30, 2024
 
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