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.

Overcast

60°F

16°C

Humidity 58%
Wind Speed N 8 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Feb 3:56 am CST
Extended Forecast for

Wimberley TX

Red Flag Warning February 21, 10:00am until February 21, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 73. North wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming east around 5 mph in the morning.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Southeast wind around 5 mph becoming calm.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 73. North wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 63. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming east around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 38. Southeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 73. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 53. South wind around 10 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
Last Update:
12:44 am CST Feb 21, 2026
Forecast Valid:
4am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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