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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles SSE Wimberley TX

  • Today

    Today: Mostly sunny, with a high near 87. South southeast wind around 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 87. South southeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 62. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Increasing clouds, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Saturday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 52.
Sunday
A 40 percent chance of showers. Cloudy, with a high near 64.
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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:
11:32 am CDT Mar 30, 2026
Forecast Valid:
11am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation