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

San Angelo, Mathis Field (KSJT)

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

Partly Cloudy

77°F

25°C

Humidity 48%
Wind Speed S 18 G 24 mph
Barometer 30.10 in (1017.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 9 Apr 12:51 pm CDT
Extended Forecast for

Mertzon TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South wind around 15 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. South wind 10 to 15 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South southeast wind 10 to 15 mph.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 61. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy, with a south southeast wind 10 to 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 61. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. South wind around 15 mph.

    Low: 63 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south wind 15 to 20 mph.

    High: 83 °F

    Partly Sunny
    and Breezy
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. South wind around 15 mph.
Tonight
Partly cloudy, with a low around 58. South wind 10 to 15 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South southeast wind 10 to 15 mph.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 61. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy, with a south southeast wind 10 to 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 61. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. South wind around 15 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south wind 15 to 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. Breezy, with a south wind 15 to 20 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 84. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mertzon TX
 31.26°N 100.82°W (Elev. 2274 ft)
Last Update:
3:16 am CDT Apr 9, 2026
Forecast Valid:
1pm CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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