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

60°F

16°C

Humidity 78%
Wind Speed S 6 mph
Barometer 30.13 in (1019.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 16 Feb 9:56 am CST
Extended Forecast for

3 Miles NNW Luling TX

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 77. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 59. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 82. Calm wind becoming south around 5 mph in the morning.

    High: 82 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. South southeast wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 85. South wind around 5 mph.

    High: 85 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. East southeast wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82. South wind 5 to 10 mph becoming north in the afternoon.

    High: 82 °F

    Partly Sunny

Detailed Forecast

Washington's Birthday
Sunny, with a high near 77. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Increasing clouds, with a low around 52. South wind around 5 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Increasing clouds, with a low around 59. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 82. Calm wind becoming south around 5 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 60. South southeast wind around 5 mph.
Thursday
Partly sunny, with a high near 85. South wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 60. East southeast wind around 5 mph.
Friday
Partly sunny, with a high near 82. South wind 5 to 10 mph becoming north in the afternoon.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Luling TX
 29.73°N 97.65°W (Elev. 446 ft)
Last Update:
10:32 am CST Feb 16, 2026
Forecast Valid:
10am CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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