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

Flash Flood Threat Shifts to Florida; Snowy in the Northern Plains; Fire Danger in the West

Showers and thunderstorms may produce flash flooding in northern and central Florida into Tuesday; and gusty winds and hail are also possible across the area Sunday. A strong cold front will bring below average temperatures and wintry precipitation to the northern High Plains. Elevated fire weather conditions are expected across parts of the Northwest and southern California. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

48°F

9°C

Humidity 74%
Wind Speed Calm
Barometer 29.88 in (1011.9 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Apr 12:52 am EDT
Extended Forecast for

Fairfax VA

  • Overnight

    Overnight: Partly cloudy, with a low around 44. Northwest wind 3 to 5 mph.

    Partly Cloudy

    Low: 44 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 65. West wind 5 to 7 mph.

    Mostly Sunny

    High: 65 °F

  • Sunday
    Night

    Sunday Night: A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 47 °F

  • Monday

    Monday: A slight chance of showers between 11am and 2pm. Mostly sunny, with a high near 68. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.

    Slight Chance
    Showers

    High: 68 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 48. Light southwest wind.

    Mostly Clear

    Low: 48 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    Mostly Sunny

    High: 73 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Partly Cloudy

    Low: 52 °F

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 70%.

    Showers
    Likely

    High: 68 °F

  • Wednesday
    Night

    Wednesday Night: Showers likely before 8pm. Mostly clear, with a low around 37. Chance of precipitation is 60%.

    Showers
    Likely then
    Mostly Clear

    Low: 37 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. Northwest wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 65. West wind 5 to 7 mph.
Sunday Night
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.
Monday
A slight chance of showers between 11am and 2pm. Mostly sunny, with a high near 68. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 48. Light southwest wind.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 70%.
Wednesday Night
Showers likely before 8pm. Mostly clear, with a low around 37. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 50%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
Last Update:
10:35 pm EDT Apr 17, 2021
Forecast Valid:
1am EDT Apr 18, 2021-6pm EDT Apr 24, 2021
 
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