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

90°F

32°C

Humidity 27%
Wind Speed Vrbl 5 mph
Barometer 29.93 in (1012.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 7 Oct 3:56 pm CDT
Extended Forecast for

Lockhart TX

  • Tonight

    Tonight: Clear, with a low around 66. North wind around 5 mph.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 92. North wind around 5 mph becoming east northeast in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. East northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. North wind around 5 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South southeast wind around 5 mph becoming calm after midnight.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 66. North wind around 5 mph.
Thursday
Sunny, with a high near 92. North wind around 5 mph becoming east northeast in the afternoon.
Thursday Night
Mostly clear, with a low around 68. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 92. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. South southeast wind around 5 mph becoming calm after midnight.
Columbus Day
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 73.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.89°N 97.65°W (Elev. 459 ft)
Last Update:
2:46 pm CDT Oct 7, 2026
Forecast Valid:
4pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation