Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Marshall (KASL)

Lat: 32.52°NLon: 94.31°WElev: 357ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed S 5 mph
Barometer 29.96 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Aug 2:35 am CDT
Extended Forecast for

Jefferson TX

Extreme Heat Warning August 21, 10:00am until August 21, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Overnight

    Overnight: Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 105. Heat index values as high as 111. Calm wind.

    High: 105 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am.  Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 7am, then a slight chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 103. Heat index values as high as 112. Calm wind.  Chance of precipitation is 30%.

    High: 103 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 77. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 105. Heat index values as high as 111. Calm wind.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 75. Calm wind.
Saturday
A chance of showers before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 103. Heat index values as high as 112. Calm wind. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 74. Calm wind.
Sunday
Sunny and hot, with a high near 102.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 102.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson TX
 32.77°N 94.35°W (Elev. 217 ft)
2:30 am CDT Aug 21, 2026
2am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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