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

Severe Thunderstorm and Flash Flooding Threats in the South

Organized severe thunderstorms capable of producing mainly large hail and perhaps damaging winds are expected across portions of Louisiana this afternoon with a second round further west tonight. Heavy thunderstorms may lead to flash flooding over portions of the northern Gulf Coast today through Saturday. Several inches of excessive rainfall are possible with Flash Flood Watches in effect. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

60°F

16°C

Humidity 65%
Wind Speed E 3 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 13 Apr 7:52 pm EDT
Extended Forecast for

Fairfax VASimilar City Names

  • Tonight

    Tonight: Mostly clear, with a low around 50. East wind around 5 mph becoming south after midnight.

    Mostly Clear

    Low: 50 °F

  • Wednesday

    Wednesday: Showers likely. Increasing clouds, with a high near 66. South wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    High: 66 °F

  • Wednesday
    Night

    Wednesday Night: Showers likely, mainly before 2am. Cloudy, with a low around 52. South wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    Low: 52 °F

  • Thursday

    Thursday: A chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 65. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Chance
    Showers then
    Partly Sunny

    High: 65 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 43. West wind 8 to 13 mph.

    Partly Cloudy

    Low: 43 °F

  • Friday

    Friday: Mostly sunny, with a high near 60.

    Mostly Sunny

    High: 60 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 42.

    Mostly Clear

    Low: 42 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 63.

    Mostly Sunny

    High: 63 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Mostly Cloudy

    Low: 46 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 50. East wind around 5 mph becoming south after midnight.
Wednesday
Showers likely. Increasing clouds, with a high near 66. South wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before 2am. Cloudy, with a low around 52. South wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 65. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 43. West wind 8 to 13 mph.
Friday
Mostly sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 46.
Monday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
A chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Fairfax VASimilar City Names
 38.85°N 77.29°W (Elev. 400 ft)
Last Update:
7:35 pm EDT Apr 13, 2021
Forecast Valid:
8pm EDT Apr 13, 2021-6pm EDT Apr 20, 2021
 
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Additional Resources

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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