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

67°F

19°C

Humidity 68%
Wind Speed NE 10 mph
Barometer 30.11 in (1019.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Nov 12:56 pm CST
Extended Forecast for

4 Miles ESE Lockhart TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 3pm. Cloudy, with a high near 76. North northeast wind 5 to 10 mph.

    High: 76 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 9pm. Cloudy, with a low around 57. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 63. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely. Mostly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before noon. Mostly cloudy, with a high near 66. North northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 70. Calm wind.

    High: 70 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Slight Chance
    Showers

  • Veterans Day

    Veterans Day: A 20 percent chance of showers. Mostly cloudy, with a high near 77. Calm wind.

    High: 77 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 3pm. Cloudy, with a high near 76. North northeast wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms, then showers likely after 9pm. Cloudy, with a low around 57. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers. High near 63. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Showers likely. Mostly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Monday
Showers likely, mainly before noon. Mostly cloudy, with a high near 66. North northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 53. Calm wind.
Tuesday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 70. Calm wind.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56. Calm wind.
Veterans Day
A 20 percent chance of showers. Mostly cloudy, with a high near 77. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Sunny, with a high near 76.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Lockhart TX
 29.84°N 97.62°W (Elev. 449 ft)
Last Update:
1:46 pm CST Nov 7, 2026
Forecast Valid:
1pm CST Nov 7, 2026-6pm CST Nov 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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