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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

San Angelo, Mathis Field (KSJT)

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

Fair

102°F

39°C

Humidity 23%
Wind Speed SE 13 G 20 mph
Barometer 29.85 in (1007.7 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 13 Aug 5:51 pm CDT
Extended Forecast for

10 Miles SW Mertzon TX

  • Tonight

    Tonight: Clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 96. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 96 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny through mid morning, then becoming cloudy, with a high near 95. South wind around 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Becoming
    Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South wind around 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind 5 to 15 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. South wind around 10 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 71. South southeast wind 5 to 10 mph.

    Low: 71 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 96. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 71. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny through mid morning, then becoming cloudy, with a high near 95. South wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 70. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 96. South wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 70. South wind 5 to 15 mph.
Monday
Sunny, with a high near 97. South wind around 10 mph.
Monday Night
Clear, with a low around 71. South southeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. South wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Clear, with a low around 72.
Thursday
Sunny, with a high near 97.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SW Mertzon TX
 31.14°N 100.92°W (Elev. 2395 ft)
Last Update:
3:23 pm CDT Aug 13, 2026
Forecast Valid:
6pm CDT Aug 13, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation