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.

Partly Cloudy and Breezy

83°F

28°C

Humidity 57%
Wind Speed SE 25 G 30 mph
Barometer 29.82 in (1009.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 2 Apr 5:56 pm CDT
Extended Forecast for

8 Miles NNE Luling TX

  • Tonight

    Tonight: Increasing clouds, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 88. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Increasing clouds, with a low around 70. South southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 80. South southeast wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 80 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 53. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers. Mostly cloudy, with a high near 66. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Cloudy, with a low around 52. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 69. Northeast wind 5 to 10 mph.

    High: 69 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47. Northeast wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 88. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Increasing clouds, with a low around 70. South southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 80. South southeast wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 53. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 66. North northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers. Cloudy, with a low around 52. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, with a high near 69. Northeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 47. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly cloudy, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Luling TX
 29.77°N 97.6°W (Elev. 397 ft)
Last Update:
5:36 pm CDT Apr 2, 2026
Forecast Valid:
6pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation