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.

Fog/Mist

63°F

17°C

Humidity 90%
Wind Speed E 3 mph
Barometer 30.24 in (1023.6 mb)
Dewpoint 60°F (16°C)
Visibility 4.00 mi
Last update 10 Nov 9:56 am CST
Extended Forecast for

Lockhart TX

  • Today

    Today: Mostly cloudy, with a high near 71. Calm wind.

    High: 71 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Veterans Day

    Veterans Day: Patchy fog before 8am. Otherwise, partly sunny, with a high near 78. Calm wind becoming north northwest around 5 mph.

    High: 78 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Light north northwest wind becoming north 5 to 10 mph after midnight.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78. North wind 5 to 10 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. North wind around 5 mph becoming calm.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 78. Calm wind becoming south southwest around 5 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. South wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 75. Light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 71. Calm wind.
Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Veterans Day
Patchy fog before 8am. Otherwise, partly sunny, with a high near 78. Calm wind becoming north northwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 55. Light north northwest wind becoming north 5 to 10 mph after midnight.
Thursday
Sunny, with a high near 78. North wind 5 to 10 mph.
Thursday Night
Clear, with a low around 48. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 78. Calm wind becoming south southwest around 5 mph.
Friday Night
Mostly clear, with a low around 50. South wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 75. Light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 71.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
10:42 am CST Nov 10, 2026
Forecast Valid:
10am CST Nov 10, 2026-6pm CST Nov 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation