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

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

65°F

18°C

Humidity 61%
Wind Speed NW 5 mph
Barometer 30.05 in (1017.1 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 Feb 6:56 pm CST
Extended Forecast for

Mountain City TX

  • Tonight

    Tonight: Mostly clear, with a low around 45. North wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 52. South wind 5 to 10 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83. South southwest wind around 5 mph.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. South southeast wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 83. South southwest wind 5 to 10 mph.

    High: 83 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. South southeast wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 52. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 58. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 83. South southwest wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 61. South southeast wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 83. South southwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 60. South southeast wind around 5 mph.
Friday
Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
A 10 percent chance of showers. Partly cloudy, with a low around 45.
Sunday
A 20 percent chance of showers. Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain City TX
 30.02°N 97.89°W (Elev. 797 ft)
Last Update:
5:46 pm CST Feb 15, 2026
Forecast Valid:
7pm CST Feb 15, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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