National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

90°F

32°C

Humidity 37%
Wind Speed S 14 G 20 mph
Barometer 29.93 in (1012.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 14 May 4:56 pm CDT
Extended Forecast for

4 Miles ENE Lockhart TX

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 92. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 72. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 91. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 79. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 79 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 91. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 91 °F

    Cloudy then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 80. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 80 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 92. South wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 72. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 91. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 79. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 91. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 80. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 90.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Lockhart TX
 29.89°N 97.62°W (Elev. 446 ft)
Last Update:
5:32 pm CDT May 14, 2026
Forecast Valid:
5pm CDT May 14, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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