National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

94°F

34°C

Humidity 33%
Wind Speed S 15 G 22 mph
Barometer 29.59 in (1001.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 15 Mar 3:56 pm CDT
Extended Forecast for

5 Miles SSE Wimberley TX

Wind Advisory March 15, 04:07pm until March 16, 05:00am
Red Flag Warning March 15, 04:07pm until March 16, 08:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning
  •  
    Wind Advisory March 15, 04:07pm until March 16, 05:00am
    Red Flag Warning March 15, 04:07pm until March 16, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 39 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Increasing clouds, with a high near 55. North wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 55 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. North wind 5 to 10 mph becoming east southeast after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. South wind around 10 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. South wind around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Southwest wind 5 to 10 mph.

    High: 84 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 39. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.
Monday
Increasing clouds, with a high near 55. North wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 34. North wind 5 to 10 mph becoming east southeast after midnight.
Tuesday
Sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 42. South wind around 10 mph.
Wednesday
Sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 51. South wind around 5 mph.
Thursday
Sunny, with a high near 84. Southwest wind 5 to 10 mph.
Thursday Night
Clear, with a low around 55. South wind around 5 mph.
Friday
Sunny, with a high near 88.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 92.
Saturday Night
Clear, with a low around 59.
Sunday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
Last Update:
3:40 pm CDT Mar 15, 2026
Forecast Valid:
4pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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