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.

Fair

89°F

32°C

Humidity 29%
Wind Speed N 12 G 18 mph
Barometer 30.01 in (1015.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 7 Oct 12:56 pm CDT
Extended Forecast for

Martindale TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. North northeast wind around 10 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. North wind around 5 mph.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Northeast wind 5 to 10 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. North northeast wind around 5 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. North northeast wind around 10 mph.
Tonight
Clear, with a low around 66. North wind around 5 mph.
Thursday
Sunny, with a high near 89. Northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 87. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 88. North northeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 70.
Columbus Day
A 20 percent chance of showers. Mostly sunny, with a high near 90.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 72.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martindale TX
 29.86°N 97.83°W (Elev. 548 ft)
Last Update:
12:44 pm CDT Oct 7, 2026
Forecast Valid:
1pm CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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