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

42°F

6°C

Humidity 55%
Wind Speed Calm
Barometer 30.22 in (1023.1 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 6 Feb 1:56 am CST
Extended Forecast for

Lockhart TX

  • Overnight

    Overnight: 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 southwest wind around 5 mph becoming calm in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. Calm wind becoming north northwest around 5 mph.

    Low: 46 °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 southeast 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

Overnight
Clear, with a low around 42. West southwest wind around 5 mph.
Friday
Sunny, with a high near 81. West southwest wind around 5 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 46. Calm wind becoming north northwest around 5 mph.
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 southeast 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 54.
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 97.68°W (Elev. 525 ft)
Last Update:
1:42 am CST Feb 6, 2026
Forecast Valid:
2am CST Feb 6, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation