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.

Light Rain

78°F

26°C

Humidity 76%
Wind Speed S 5 mph
Barometer 29.93 in (1013.1 mb)
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Heat Index80°F (27°C)
Last update 9 Mar 4:56 pm CDT
Extended Forecast for

Wimberley TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind around 10 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. South wind 5 to 10 mph.

    Low: 67 °F

    Slight Chance
    T-storms then
    Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 10am and 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 62. South southeast wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. Light north northwest wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 47. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45. East wind around 5 mph becoming calm.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 80. Light south southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind around 10 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. South wind 5 to 10 mph.
Tuesday
A slight chance of showers and thunderstorms between 10am and 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 62. South southeast wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. Light north northwest wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Wednesday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 47. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.
Thursday
Sunny, with a high near 70. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 45. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 80. Light south southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Clear, with a low around 53.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
Last Update:
5:32 pm CDT Mar 9, 2026
Forecast Valid:
5pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation