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.

Mostly Cloudy

71°F

22°C

Humidity 96%
Wind Speed NW 9 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 20 Apr 10:56 am CDT
Extended Forecast for

Lockhart TX

  • Today

    Today: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. South southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 82 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 56. North wind around 5 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. North wind 5 to 10 mph becoming east in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 66. East southeast wind 5 to 10 mph becoming light southeast after midnight.

    Low: 66 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 87 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 10 mph.

    Low: 67 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. South southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 56. North wind around 5 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 86. North wind 5 to 10 mph becoming east in the afternoon.
Monday Night
Increasing clouds, with a low around 66. East southeast wind 5 to 10 mph becoming light southeast after midnight.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 10 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.7°W (Elev. 564 ft)
Last Update:
11:19 am CDT Apr 20, 2025
Forecast Valid:
11am CDT Apr 20, 2025-6pm CDT Apr 26, 2025
 
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