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

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 >

Hazardous Weather Conditions

Current conditions at

Stephenville, Clark Field Municipal Airport (KSEP)

Lat: 32.22°NLon: 98.18°WElev: 1322ft.

Partly Cloudy

78°F

26°C

Humidity 55%
Wind Speed S 6 mph
Barometer 30.01 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 2:15 am CDT
Extended Forecast for

Stephenville / Clark Field Municipal Airport TX

Heat Advisory August 20, 02:30am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 20, 02:30am until August 20, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Overnight

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 103. Southwest wind 5 to 10 mph.

    High: 103 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 103. Southwest wind around 5 mph.

    High: 103 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 104. Southwest wind around 5 mph.

    High: 104 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Southwest wind around 5 mph.

    High: 104 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 76. South southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 103. Southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Friday
A 10 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 103. Southwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Saturday
Sunny and hot, with a high near 104. Southwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Sunday
Sunny and hot, with a high near 104. Southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 104.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 103.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 102.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Stephenville / Clark Field Municipal Airport TX
 32.24°N 98.19°W (Elev. 1299 ft)
Last Update:
1:26 am CDT Aug 20, 2026
Forecast Valid:
2am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation