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.

Mostly Cloudy

58°F

14°C

Humidity 75%
Wind Speed NW 14 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 9 May 2:52 pm EDT
Extended Forecast for

Fairfax VA

  • This Afternoon

    This Afternoon: Scattered showers, mainly before 5pm. Mostly cloudy, with a high near 61. Northwest wind around 10 mph. Chance of precipitation is 40%.

    High: 61 °F

    Scattered
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 47. Northwest wind 7 to 9 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 71. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Light west wind.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77. North wind around 7 mph.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Scattered showers, mainly before 5pm. Mostly cloudy, with a high near 61. Northwest wind around 10 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 47. Northwest wind 7 to 9 mph.
Saturday
Sunny, with a high near 71. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 52. Light west wind.
Sunday
Mostly sunny, with a high near 77. North wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 76.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. Chance of precipitation is 80%.
Wednesday
Showers. High near 76. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 64. Chance of precipitation is 80%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
Last Update:
1:30 pm EDT May 9, 2025
Forecast Valid:
3pm EDT May 9, 2025-6pm EDT May 16, 2025
 
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