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.

Overcast

71°F

22°C

Humidity 84%
Wind Speed S 8 mph
Barometer 29.93 in (1012.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 6 Mar 12:56 am CST
Extended Forecast for

2 Miles SSW Lockhart TX

  • Overnight

    Overnight: Cloudy, with a low around 67. South southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Cloudy

  • Friday

    Friday: A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 9pm. Increasing clouds, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Slight Chance
    Showers then
    Cloudy

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 84. South southeast wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 84 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then showers and thunderstorms likely between midnight and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 56. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 56 °F

    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 67. North northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 61. North northeast wind around 5 mph becoming southeast after midnight.

    Low: 61 °F

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Cloudy, with a low around 67. South southeast wind around 15 mph, with gusts as high as 25 mph.
Friday
A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 84. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of showers before 9pm. Increasing clouds, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 84. South southeast wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before midnight, then showers and thunderstorms likely between midnight and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 56. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 67. North northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 61. North northeast wind around 5 mph becoming southeast after midnight.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 81.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
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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:
12:44 am CST Mar 6, 2026
Forecast Valid:
1am CST Mar 6, 2026-6pm CDT Mar 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