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.

A Few Clouds

91°F

33°C

Humidity 52%
Wind Speed SW 7 mph
Barometer 30.19 in (1021.4 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 6 Aug 11:56 am CDT
Extended Forecast for

5 Miles NNE Prairie Lea TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 96. Heat index values as high as 104. South southeast wind around 5 mph.

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 97. Heat index values as high as 104. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 75. Southeast wind around 5 mph becoming calm after midnight.

    Low: 75 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light south after midnight.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 96. Heat index values as high as 104. South southeast wind around 5 mph.
Tonight
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 97. Heat index values as high as 104. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 75. Southeast wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 74. South wind around 5 mph.
Saturday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light south after midnight.
Sunday
Sunny, with a high near 96. Calm wind becoming east southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 74.
Monday
Mostly sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 96.
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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:
12:31 pm CDT Aug 6, 2025
Forecast Valid:
12pm CDT Aug 6, 2025-6pm CDT Aug 12, 2025
 
Forecast Discussion
 
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Additional Resources

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