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

39°F

4°C

Humidity 55%
Wind Speed N 6 mph
Barometer 30.60 in (1036.0 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 23 Feb 1:56 am CST
Extended Forecast for

5 Miles NNE Prairie Lea TX

  • Overnight

    Overnight: Mostly clear, with a low around 34. North wind around 5 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

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

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 36. East wind around 5 mph becoming calm.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. South southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

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

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. South southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49. North wind 5 to 10 mph.

    Low: 49 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 34. North wind around 5 mph.
Monday
Sunny, with a high near 66. North wind around 5 mph becoming east in the afternoon.
Monday Night
Clear, with a low around 36. East wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 75. South southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 84. South southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 49. North wind 5 to 10 mph.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Prairie Lea TX
 29.77°N 97.67°W (Elev. 404 ft)
Last Update:
12:44 am CST Feb 23, 2026
Forecast Valid:
2am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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