Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

72°F

22°C

Humidity 84%
Wind Speed S 5 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 27 Aug 3:52 am EDT
Extended Forecast for

Fairfax VA

  • Today

    Today: Scattered showers and thunderstorms after 2pm. Some of the storms could be severe.  Mostly sunny, with a high near 88. South wind 7 to 9 mph.  Chance of precipitation is 50%.

    High: 88 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm, then scattered showers between 11pm and 2am. Some of the storms could be severe.  Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 68 °F

    Severe
    Thunderstorms
    then
    Scattered
    Showers

  • Friday

    Friday: Partly sunny, with a high near 86. Calm wind becoming north around 5 mph.

    High: 86 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. North wind around 5 mph becoming light and variable  in the morning.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 88. South wind 7 to 9 mph. Chance of precipitation is 50%.
Tonight
Scattered showers and thunderstorms before 11pm, then scattered showers between 11pm and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 86. Calm wind becoming north around 5 mph.
Friday Night
Mostly cloudy, with a low around 68. Calm wind.
Saturday
Mostly sunny, with a high near 86. North wind around 5 mph becoming light and variable in the morning.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.83°N 77.29°W (Elev. 348 ft)
3:10 am EDT Aug 27, 2026
4am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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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