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.

Partly Cloudy

89°F

32°C

Humidity 57%
Wind Speed S 18 mph
Barometer 29.93 in (1012.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 18 Jun 6:56 pm CDT
Extended Forecast for

2 Miles WSW San Marcos TX

  • Tonight

    Tonight: Increasing clouds, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 93. Heat index values as high as 102. South southeast wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 92. Heat index values as high as 100. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Juneteenth
Mostly sunny, with a high near 93. Heat index values as high as 102. South southeast wind 5 to 10 mph.
Thursday Night
Increasing clouds, with a low around 75. South southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 92. Heat index values as high as 100. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 74. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW San Marcos TX
 29.86°N 97.97°W (Elev. 646 ft)
Last Update:
5:42 pm CDT Jun 18, 2025
Forecast Valid:
7pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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