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.

Overcast

33°F

1°C

Humidity 56%
Wind Speed NW 7 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Jan 5:52 am EST
Extended Forecast for

Fairfax VA

  • Today

    Today: Sunny, with a high near 45. Northwest wind around 8 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. Southwest wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 52. Southwest wind around 7 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.

    High: 39 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.

    Low: 21 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 45. Northwest wind around 8 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 29. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 49. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 52. Southwest wind around 7 mph. Chance of precipitation is 30%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 34.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
Last Update:
3:53 am EST Jan 12, 2026
Forecast Valid:
6am EST Jan 12, 2026-6pm EST Jan 18, 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