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Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

61°F

16°C

Humidity 60%
Wind Speed NW 7 mph
Barometer 29.92 in (1012.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Feb 4:56 am CST
Extended Forecast for

3 Miles NNW Luling 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 77. Breezy, with a north wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 77 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 40. North wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. North northeast wind 5 to 10 mph becoming light.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. North northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. East southeast wind around 5 mph becoming calm.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 77. Breezy, with a north wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly clear, with a low around 40. North wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 36. North northeast wind 5 to 10 mph becoming light.
Monday
Sunny, with a high near 66. North northeast wind around 5 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 37. East southeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 75. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 54. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 84. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 87.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Luling TX
 29.73°N 97.65°W (Elev. 446 ft)
Last Update:
4:32 am CST Feb 21, 2026
Forecast Valid:
5am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation