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.

Fair

80°F

27°C

Humidity 76%
Wind Speed SE 6 mph
Barometer 30.13 in (1019.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 5 Aug 11:56 pm CDT
Extended Forecast for

Wimberley TX

  • Overnight

    Overnight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South southeast wind around 5 mph becoming calm after midnight.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Calm wind becoming south around 5 mph in the morning.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. East southeast wind around 5 mph becoming south after midnight.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Calm wind becoming south southeast around 5 mph in the morning.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind 5 to 10 mph.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 72. Calm wind.
Wednesday
Sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 73. South southeast wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 95. Calm wind becoming south around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 73. East southeast wind around 5 mph becoming south after midnight.
Saturday
Sunny, with a high near 94. Calm wind becoming south southeast around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 71. South wind 5 to 10 mph.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.13°W (Elev. 997 ft)
Last Update:
12:02 am CDT Aug 6, 2025
Forecast Valid:
12am CDT Aug 6, 2025-6pm CDT Aug 12, 2025
 
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