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.

Overcast

65°F

18°C

Humidity 90%
Wind Speed NW 3 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 11 Nov 8:56 am CST
Extended Forecast for

Lockhart TX

  • Veterans Day

    Veterans Day: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 77. Calm wind.

    High: 77 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Light north wind increasing to 5 to 10 mph after midnight.

    Low: 56 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 77. North northeast wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49. Calm wind.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming south around 5 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. South wind around 5 mph becoming calm.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Partly sunny, with a high near 72. Light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 72 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 55. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms, then showers likely after noon. Mostly cloudy, with a high near 70. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Veterans Day
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 77. Calm wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Light north wind increasing to 5 to 10 mph after midnight.
Thursday
Sunny, with a high near 77. North northeast wind 5 to 10 mph.
Thursday Night
Clear, with a low around 49. Calm wind.
Friday
Sunny, with a high near 77. Calm wind becoming south around 5 mph.
Friday Night
Mostly clear, with a low around 51. South wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers after noon. Partly sunny, with a high near 72. Light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 55. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A slight chance of showers and thunderstorms, then showers likely after noon. Mostly cloudy, with a high near 70. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 53.
Monday
Partly sunny, with a high near 66.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
8:24 am CST Nov 11, 2026
Forecast Valid:
9am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
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Additional Resources

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Chance of Precipitation