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

96°F

36°C

Humidity 41%
Wind Speed Vrbl 7 mph
Barometer 29.98 in (1014.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 2 Jul 4:56 pm CDT
Extended Forecast for

2 Miles SSW Lockhart TX

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 96. Heat index values as high as 102. Light south wind becoming south southeast 5 to 10 mph in the morning.

    High: 96 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Independence Day

    Independence Day: Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 100. South southwest wind around 5 mph.

    High: 96 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. South southwest wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. South southeast wind around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph in the morning.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. South southeast wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 96. Heat index values as high as 102. Light south wind becoming south southeast 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Independence Day
Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 100. South southwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 75. South southwest wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 96. South southeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph in the morning.
Monday Night
Partly cloudy, with a low around 75. South southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 97.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Mostly sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lockhart TX
 29.86°N 97.7°W (Elev. 545 ft)
Last Update:
5:12 pm CDT Jul 2, 2026
Forecast Valid:
5pm CDT Jul 2, 2026-6pm CDT Jul 9, 2026
 
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