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

77°F

25°C

Humidity 60%
Wind Speed SW 3 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 5 Nov 5:56 pm CST
Extended Forecast for

2 Miles SSW Lockhart TX

  • Tonight

    Tonight: Increasing clouds, with a low around 56. Light and variable wind becoming north northwest 10 to 15 mph after midnight. Winds could gust as high as 20 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 77. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 55. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 64. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 47. North northeast wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. Light and variable wind becoming north northwest 10 to 15 mph after midnight. Winds could gust as high as 20 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 77. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Increasing clouds, with a low around 55. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers after noon. Cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 64. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47. North northeast wind around 5 mph becoming calm in the evening.
Monday
A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 67. Calm wind.
Monday Night
Partly cloudy, with a low around 47. Calm wind.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 49.
Veterans Day
Partly sunny, with a high near 76.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lockhart TX
 29.86°N 97.7°W (Elev. 545 ft)
Last Update:
5:46 pm CST Nov 5, 2026
Forecast Valid:
6pm CST Nov 5, 2026-6pm CST Nov 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation