National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

46°F

8°C

Humidity 83%
Wind Speed S 3 mph
Barometer 30.16 in (1021.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 Nov 8:52 pm EST
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Light southeast wind.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 56. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.

    High: 56 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain. Low around 48. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 55. North wind 7 to 10 mph. Chance of precipitation is 40%.

    High: 55 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. North wind 3 to 6 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Light southeast wind.
Friday
A chance of rain. Mostly cloudy, with a high near 56. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.
Friday Night
Rain. Low around 48. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 55. North wind 7 to 10 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 33. North wind 3 to 6 mph.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Wednesday
A chance of rain. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Thanksgiving Day
Mostly sunny, with a high near 52.
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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:
6:52 pm EST Nov 20, 2025
Forecast Valid:
9pm EST Nov 20, 2025-6pm EST Nov 27, 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