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

51°F

11°C

Humidity 77%
Wind Speed N 5 mph
Barometer 30.25 in (1024.0 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 19 Oct 5:56 am CDT
Extended Forecast for

3 Miles ESE Wimberley TX

  • Today

    Today: Mostly sunny, with a high near 77. Calm wind becoming east around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. East northeast wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming east northeast around 5 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. East wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming east southeast around 5 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. East southeast wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. Calm wind becoming east around 5 mph.
Tonight
Mostly clear, with a low around 57. Calm wind.
Tuesday
Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 57. East northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 83. Calm wind becoming east northeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 58. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 85. Calm wind becoming east southeast around 5 mph.
Thursday Night
Mostly clear, with a low around 58. East southeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 85. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 60.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Wimberley TX
 29.99°N 98.05°W (Elev. 748 ft)
Last Update:
6:42 am CDT Oct 19, 2026
Forecast Valid:
6am CDT Oct 19, 2026-6pm CDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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