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

81°F

27°C

Humidity 39%
Wind Speed NW 15 mph
Barometer 29.92 in (1012.2 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 11 Mar 12:56 pm CDT
Extended Forecast for

2 Miles SSE Mountain City TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 44. North wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Slight Chance
    T-storms then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 67. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 42. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 78. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 51. South wind 5 to 10 mph.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 90. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 90 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 44. North wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 67. North wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 42. Calm wind becoming south southwest around 5 mph after midnight.
Friday
Sunny, with a high near 78. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 51. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 90. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Mountain City TX
 30.02°N 97.89°W (Elev. 797 ft)
Last Update:
11:32 am CDT Mar 11, 2026
Forecast Valid:
1pm CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
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