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

Tropical Storm and Storm Surge Warnings for the North Carolina Outer Banks; Heat Building in the West

Storm surge flooding and tropical storm conditions are expected in the Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Warnings are in effect. Tropical storm conditions are possible along the eastern shore of Virginia Thursday. Hurricane Erin will continue to produce life-threatening surf and rip currents along much of the east coast of the U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Drizzle

68°F

20°C

Humidity 90%
Wind Speed E 6 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 65°F (18°C)
Visibility 7.00 mi
Last update 19 Aug 9:52 pm EDT
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: Patchy drizzle before midnight. Cloudy, with a low around 68. East wind around 6 mph.

    Low: 68 °F

    Patchy
    Drizzle then
    Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Southeast wind around 6 mph. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 7pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Northeast wind around 8 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 77. Northeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 63. North wind 8 to 11 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy drizzle before midnight. Cloudy, with a low around 68. East wind around 6 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Southeast wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms between 7pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Northeast wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 77. Northeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 63. North wind 8 to 11 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 79.
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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:
7:29 pm EDT Aug 19, 2025
Forecast Valid:
10pm EDT Aug 19, 2025-6pm EDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation