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

88°F

31°C

Humidity 46%
Wind Speed Vrbl 5 mph
Barometer 30.09 in (1018.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 13 May 1:56 pm CDT
Extended Forecast for

Lockhart TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. Calm wind becoming east around 5 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. Calm wind becoming south around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Partly Cloudy

  • Friday

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

    High: 92 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 71. South southeast wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 87. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 87 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 90. Calm wind becoming east around 5 mph.
Tonight
Mostly clear, with a low around 65. Calm wind becoming south around 5 mph.
Thursday
Sunny, with a high near 91. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 71. South southeast wind 10 to 20 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 87. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 79.
Monday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
1:28 pm CDT May 13, 2026
Forecast Valid:
2pm CDT May 13, 2026-6pm CDT May 19, 2026
 
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