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

46°F

8°C

Humidity 46%
Wind Speed Calm
Barometer 30.25 in (1024.2 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 5 Feb 10:56 pm CST
Extended Forecast for

Lockhart TX

  • Tonight

    Tonight: Clear, with a low around 42. West southwest wind around 5 mph.

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 81. West wind around 5 mph becoming calm in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. Calm wind becoming north around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. North wind around 5 mph becoming southeast in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm after midnight.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76. Light south wind increasing to 5 to 10 mph in the morning.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm after midnight.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 77. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 77 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 57. South southeast wind 5 to 10 mph.

    Low: 57 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 42. West southwest wind around 5 mph.
Friday
Sunny, with a high near 81. West wind around 5 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 45. Calm wind becoming north around 5 mph after midnight.
Saturday
Sunny, with a high near 80. North wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 76. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 77. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57. South southeast wind 5 to 10 mph.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Partly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.7°W (Elev. 564 ft)
Last Update:
11:34 pm CST Feb 5, 2026
Forecast Valid:
11pm CST Feb 5, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation