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

76°F

24°C

Humidity 97%
Wind Speed SE 5 mph
Barometer 30.03 in (1015.9 mb)
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Heat Index75°F (24°C)
Last update 14 Aug 4:56 am CDT
Extended Forecast for

Wimberley TX

  • Today

    Today: Mostly sunny, with a high near 97. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 99. South southeast wind around 5 mph.

    High: 99 °F

    Hot

  • Sunday Night

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

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 100. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. South wind around 5 mph.

    High: 99 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 97. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny and hot, with a high near 99. South southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 74. South southeast wind around 5 mph.
Monday
Sunny and hot, with a high near 100. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 99. South wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 30.01°N 98.1°W (Elev. 863 ft)
Last Update:
2:44 am CDT Aug 14, 2026
Forecast Valid:
5am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
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Additional Resources

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