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

Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

San Angelo, Mathis Field (KSJT)

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

Fair

68°F

20°C

Humidity 78%
Wind Speed S 10 mph
Barometer 29.86 in (1009.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 27 Dec 9:51 pm CST
Extended Forecast for

Mertzon TX

  • Tonight

    Tonight: Partly cloudy, with a low around 59. South southwest wind 10 to 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 35. Windy, with a northeast wind 15 to 25 mph.

    Low: 35 °F

    Increasing
    Clouds and
    Windy

  • Monday

    Monday: Mostly cloudy, with a high near 45. Breezy, with a north northeast wind 10 to 20 mph.

    High: 45 °F

    Mostly Cloudy
    and Breezy
    then Cloudy

  • Monday Night

    Monday Night: Cloudy, with a low around 32. North wind 5 to 10 mph.

    Low: 32 °F

    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. Calm wind becoming south southwest around 5 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. South southwest wind around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. South southwest wind 5 to 10 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. Southwest wind 5 to 10 mph.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. South southwest wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 35. Windy, with a northeast wind 15 to 25 mph.
Monday
Mostly cloudy, with a high near 45. Breezy, with a north northeast wind 10 to 20 mph.
Monday Night
Cloudy, with a low around 32. North wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 54. Calm wind becoming south southwest around 5 mph.
Tuesday Night
Partly cloudy, with a low around 34. South southwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 58. South southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 36. Southwest wind 5 to 10 mph.
New Year's Day
Mostly sunny, with a high near 69. Southwest wind around 10 mph.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mertzon TX
 31.26°N 100.82°W (Elev. 2274 ft)
Last Update:
9:06 pm CST Dec 27, 2025
Forecast Valid:
10pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
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