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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SSW Lockhart TX

  • Today

    Today: Mostly cloudy, with a high near 69. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm after midnight.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 91. South wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 91 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 65. South southeast wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 65 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 69. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 84. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 91. South wind 10 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 65. South southeast wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Thursday
A 30 percent chance of showers and thunderstorms. Cloudy, with a high near 82.
Thursday Night
Mostly cloudy, with a low around 64.
Friday
Mostly cloudy, with a high near 89.
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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:
6:42 am CDT Mar 28, 2026
Forecast Valid:
9am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation