Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

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. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

A Few Clouds

71°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in (1016.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 27 Aug 7:56 am EDT
Extended Forecast for

Gainesville 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 6 to 9 mph.  Chance of precipitation is 40%.

    High: 88 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 1am, then isolated showers between 1am and 2am. Some of the storms could be severe.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 67. South wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 40%.

    Low: 67 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 86. Calm wind becoming north around 5 mph.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87. North wind around 5 mph becoming light and variable  in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 89.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °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 6 to 9 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms before 1am, then isolated showers between 1am and 2am. Some of the storms could be severe. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 67. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 86. Calm wind becoming north around 5 mph.
Friday Night
Mostly cloudy, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 87. North wind around 5 mph becoming light and variable in the afternoon.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gainesville VA
 38.8°N 77.64°W (Elev. 381 ft)
7:52 am EDT Aug 27, 2026
8am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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