Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jasper, Jasper County-Bell Field Airport (KJAS)

Lat: 30.89°NLon: 94.03°WElev: 213ft.

79°F

26°C

Humidity 89%
Wind Speed SW 6 mph
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Aug 12:35 am CDT
Extended Forecast for

Hemphill TX

Heat Advisory August 20, 12:41am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 20, 12:41am until August 20, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Overnight

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. Heat index values as high as 110. Calm wind becoming southwest around 5 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 102. Heat index values as high as 114. Calm wind becoming west around 5 mph.

    High: 102 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 102.

    High: 102 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

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

    Low: 76 °F

    Partly Cloudy

  • Sunday

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

    High: 101 °F

    Hot

Detailed Forecast

Overnight
Clear, with a low around 76. South wind around 5 mph becoming calm.
Thursday
Mostly sunny and hot, with a high near 101. Heat index values as high as 110. Calm wind becoming southwest around 5 mph.
Thursday Night
Mostly clear, 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 102. Heat index values as high as 114. Calm wind becoming west around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 102.
Saturday Night
Partly cloudy, with a low around 76.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 99.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Hemphill TX
 31.34°N 93.86°W (Elev. 249 ft)
12:30 am CDT Aug 20, 2026
12am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database