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.

Light Rain Fog/Mist

78°F

26°C

Humidity 97%
Wind Speed S 7 mph
Barometer 29.95 in (1013.3 mb)
Dewpoint 77°F (25°C)
Visibility 5.00 mi
Heat Index81°F (27°C)
Last update 24 Jul 2:56 am CDT
Extended Forecast for

Wimberley TX

  • Overnight

    Overnight: A 30 percent chance of showers, mainly after 4am. Cloudy, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: 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 around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 96. South 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: Mostly clear, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 4am. Cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Friday
A 30 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
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 around 5 mph.
Sunday
Sunny, with a high near 96. South 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
Mostly 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 98.
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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 30.01°N 98.1°W (Elev. 863 ft)
Last Update:
2:42 am CDT Jul 24, 2026
Forecast Valid:
3am CDT Jul 24, 2026-6pm CDT Jul 30, 2026
 
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Additional Resources

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