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

15°C

59°F

Humidity 58%
Wind Speed NW 6 km/h
Barometer 1018.0 mb (30.07 in)
Dewpoint 7°C (44°F)
Visibility 16 km
Last update 8 Oct 9:52 pm EDT
Extended Forecast for

Reston VA

  • Tonight

    Tonight: Mostly clear, with a low around 9. Calm wind.

    Low: 9 °C

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 23. Calm wind becoming northwest 5 to 10 km/h in the afternoon.

    High: 23 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11. Calm wind.

    Low: 11 °C

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 22. Northeast wind 5 to 11 km/h becoming southeast in the afternoon.

    High: 22 °C

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Cloudy, with a low around 15. Southeast wind around 10 km/h. Chance of precipitation is 50%.

    Low: 15 °C

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 19. Chance of precipitation is 90%.

    High: 19 °C

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 17. Chance of precipitation is 80%.

    Low: 17 °C

    Showers

  • Columbus Day

    Columbus Day: Showers likely, mainly before 8am. Mostly cloudy, with a high near 22. Chance of precipitation is 60%.

    High: 22 °C

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °C

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 9. Calm wind.
Friday
Mostly sunny, with a high near 23. Calm wind becoming northwest 5 to 10 km/h in the afternoon.
Friday Night
Mostly cloudy, with a low around 11. Calm wind.
Saturday
Partly sunny, with a high near 22. Northeast wind 5 to 11 km/h becoming southeast in the afternoon.
Saturday Night
A chance of showers after 2am. Cloudy, with a low around 15. Southeast wind around 10 km/h. Chance of precipitation is 50%.
Sunday
Showers, mainly after 8am. High near 19. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 17. Chance of precipitation is 80%.
Columbus Day
Showers likely, mainly before 8am. Mostly cloudy, with a high near 22. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 19.
Wednesday Night
Mostly clear, with a low around 11.
Thursday
Mostly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.95°N 77.36°W (Elev. 446 m)
Last Update:
9:24 pm EDT Oct 8, 2026
Forecast Valid:
10pm EDT Oct 8, 2026-6pm EDT Oct 15, 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