National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

92°F

33°C

Humidity 21%
Wind Speed SW 6 mph
Barometer 29.86 in (1010.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 12 May 3:56 pm CDT
Extended Forecast for

Wimberley TX

Heat Advisory May 13, 01:00pm until May 14, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 106. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 106 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 71. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny and hot, with a high near 101. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 72. South southeast wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 72. South southeast wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. Calm wind becoming south southwest around 5 mph after midnight.
Tuesday
Sunny and hot, with a high near 102. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 70. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny and hot, with a high near 106. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 71. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Partly sunny and hot, with a high near 101. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 72. South southeast wind around 5 mph.
Friday
Partly sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 72. South southeast wind around 5 mph.
Saturday
Mostly sunny and hot, with a high near 100.
Saturday Night
Mostly cloudy, with a low around 72.
Sunday
Partly sunny, with a high near 98.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
Last Update:
2:42 pm CDT May 12, 2025
Forecast Valid:
4pm CDT May 12, 2025-6pm CDT May 19, 2025
 
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