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.

Overcast

91°F

33°C

Humidity 59%
Wind Speed S 9 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 12 Oct 2:56 pm CDT
Extended Forecast for

Wimberley TX

  • Columbus Day

    Columbus Day: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 75. Southeast wind around 5 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 101. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 75. South southeast wind around 10 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 91. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89. South southeast wind around 5 mph.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. East southeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Columbus Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 75. Southeast wind around 5 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 101. South wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday Night
Increasing clouds, with a low around 75. South southeast wind around 10 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 91. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 89. South southeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 63. East southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
Last Update:
2:44 pm CDT Oct 12, 2026
Forecast Valid:
3pm CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
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Additional Resources

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Chance of Precipitation