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

75°F

24°C

Humidity 88%
Wind Speed S 6 mph
Barometer 29.88 in (1010.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 5 Sep 5:56 am CDT
Extended Forecast for

Lockhart TX

  • Today

    Today: Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Light north wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 71. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 91. North northeast wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 91 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 70. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Light north wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 71. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 91. North northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 70. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
6:02 am CDT Sep 5, 2025
Forecast Valid:
6am CDT Sep 5, 2025-6pm CDT Sep 11, 2025
 
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Additional Resources

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Chance of Precipitation