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.

Mostly Cloudy

66°F

19°C

Humidity 90%
Wind Speed N 9 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 9 May 1:56 am CDT
Extended Forecast for

5 Miles SW San Marcos TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. North wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 54. Northeast wind 5 to 10 mph becoming light north northeast in the evening.

    Low: 54 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. South southeast wind around 5 mph.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. North wind around 5 mph.
Friday
Mostly sunny, with a high near 83. North wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 60. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 80. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 56. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 82. North wind 5 to 10 mph.
Sunday Night
Clear, with a low around 54. Northeast wind 5 to 10 mph becoming light north northeast in the evening.
Monday
Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 59. South southeast wind around 5 mph.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny and hot, with a high near 99.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.83°N 97.99°W (Elev. 676 ft)
Last Update:
10:46 pm CDT May 8, 2025
Forecast Valid:
2am CDT May 9, 2025-6pm CDT May 15, 2025
 
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Additional Resources

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