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

83°F

28°C

Humidity 67%
Wind Speed S 7 mph
Barometer 30.05 in (1016.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 7 Jul 9:56 pm CDT
Extended Forecast for

2 Miles SSW Lockhart TX

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 97. Heat index values as high as 101. South southwest wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 97. Heat index values as high as 102. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 95. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 94 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. South wind around 5 mph.
Wednesday
Mostly sunny, with a high near 97. Heat index values as high as 101. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 73. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 97. Heat index values as high as 102. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 95. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 77. South wind 5 to 10 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lockhart TX
 29.86°N 97.7°W (Elev. 545 ft)
Last Update:
7:44 pm CDT Jul 7, 2026
Forecast Valid:
10pm CDT Jul 7, 2026-6pm CDT Jul 14, 2026
 
Forecast Discussion
 
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Additional Resources

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