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

74°F

23°C

Humidity 91%
Wind Speed N 10 mph
Barometer 30.05 in (1016.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 3 Oct 10:56 pm CDT
Extended Forecast for

Martindale TX

  • Tonight

    Tonight: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 71. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 82. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 69. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. North wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. North northeast wind 5 to 10 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Northeast wind around 5 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 71. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 82. North northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 69. North wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 85. North northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 64. North wind 5 to 10 mph.
Tuesday
Sunny, with a high near 86. North northeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 88. Northeast wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martindale TX
 29.84°N 97.83°W (Elev. 502 ft)
Last Update:
6:44 pm CDT Oct 3, 2026
Forecast Valid:
11pm CDT Oct 3, 2026-6pm CDT Oct 10, 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