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.

Mostly Cloudy

89°F

32°C

Humidity 57%
Wind Speed S 14 mph
Barometer 30.05 in (1016.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 24 Jul 11:56 am CDT
Extended Forecast for

4 Miles SW Wimberley TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 94. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 95. Heat index values as high as 102. South wind around 5 mph.

    High: 95 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South southeast wind 5 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 96. South southwest wind around 5 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 95. Heat index values as high as 102. South wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 73. South southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 96. South southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 74. South wind around 5 mph.
Monday
Sunny, with a high near 97. South wind 5 to 10 mph.
Monday Night
Clear, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 97. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 98.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Wimberley TX
 29.94°N 98.15°W (Elev. 981 ft)
Last Update:
11:32 am CDT Jul 24, 2026
Forecast Valid:
12pm CDT Jul 24, 2026-6pm CDT Jul 30, 2026
 
Forecast Discussion
 
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Additional Resources

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