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

73°F

23°C

Humidity 46%
Wind Speed N 9 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 2 May 2:56 pm CDT
Extended Forecast for

5 Miles SSE Wimberley TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. East northeast wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. West wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South southeast wind 5 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 86. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. South wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 88 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 72. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 51. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. West wind 5 to 10 mph becoming south southeast in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. South southeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 86. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. South wind 5 to 10 mph becoming west northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 75.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
Last Update:
2:44 pm CDT May 2, 2026
Forecast Valid:
3pm CDT May 2, 2026-6pm CDT May 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation