Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

San Angelo, Mathis Field (KSJT)

Lat: 31.35°NLon: 100.49°WElev: 1916ft.

Fair

100°F

38°C

Humidity 22%
Wind Speed E 6 mph
Barometer 30.00 in (1012.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 21 Aug 5:51 pm CDT
Extended Forecast for

21 Miles NW Mertzon TX

  • Tonight

    Tonight: Clear, with a low around 74. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 74 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 102. Southwest wind around 5 mph.

    High: 102 °F

    Hot

  • Saturday Night

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

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 76. South southwest wind 5 to 10 mph.

    Low: 76 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. South southwest wind around 10 mph.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 103. South wind around 10 mph.

    High: 103 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 74. Southeast wind around 5 mph becoming southwest after midnight.
Saturday
Sunny and hot, with a high near 102. Southwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 76. South southwest wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.
Sunday Night
Clear, with a low around 76. South southwest wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 102. South southwest wind around 10 mph.
Monday Night
Clear, with a low around 74. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 103. South wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Friday
Sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NW Mertzon TX
 31.45°N 101.09°W (Elev. 2323 ft)
3:22 pm CDT Aug 21, 2026
6pm CDT Aug 21, 2026-6pm CDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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