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 and Windy

81°F

27°C

Humidity 58%
Wind Speed S 26 G 30 mph
Barometer 29.90 in (1011.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 6 Mar 11:56 am CST
Extended Forecast for

Wimberley TX

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 81. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 81. South southeast wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 53. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 53 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 68. North wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after midnight. Cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.

    Low: 59 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 80. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 66. South southeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 81. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 81. South southeast wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 53. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 68. North wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.
Monday
A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 80. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 66. South southeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70.
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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:
12:24 pm CST Mar 6, 2026
Forecast Valid:
12pm CST Mar 6, 2026-6pm CDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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