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

66°F

19°C

Humidity 90%
Wind Speed S 7 mph
Barometer 30.02 in (1015.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 3 Mar 2:56 am CST
Extended Forecast for

Wimberley TX

  • Overnight

    Overnight: Cloudy, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 86. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: A slight chance of drizzle after 3am. Increasing clouds, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Drizzle

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 83. South wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 63. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 86. South southeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 84. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 64. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Overnight
Cloudy, with a low around 60. South wind around 5 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 86. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of drizzle after 3am. Increasing clouds, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 83. South wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 63. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 86. South southeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 84. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 64. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Showers likely, then showers and possibly a thunderstorm after noon. High near 83. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 60. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 77. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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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:
2:48 am CST Mar 3, 2026
Forecast Valid:
3am CST Mar 3, 2026-6pm CDT Mar 9, 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