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

87°F

31°C

Humidity 51%
Wind Speed SE 5 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 23 May 10:56 am CDT
Extended Forecast for

5 Miles SSE Wimberley TX

  • Today

    Today: Sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Memorial Day

    Memorial Day: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 72. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Memorial Day
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
Last Update:
8:42 am CDT May 23, 2025
Forecast Valid:
11am CDT May 23, 2025-6pm CDT May 29, 2025
 
Forecast Discussion
 
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Additional Resources

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