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

67°F

19°C

Humidity 59%
Wind Speed SE 6 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 4 Nov 6:56 pm CST
Extended Forecast for

Martindale TX

  • Tonight

    Tonight: Clear, with a low around 50. Calm wind.

    Low: 50 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming south around 5 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Mostly cloudy, with a high near 70. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 65. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 47. North northeast wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 50. Calm wind.
Thursday
Sunny, with a high near 81. Calm wind becoming south around 5 mph.
Thursday Night
Partly cloudy, with a low around 54. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 73. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 51. North wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 70. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 65. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47. North northeast wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 48.
Veterans Day
Partly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martindale TX
 29.84°N 97.83°W (Elev. 502 ft)
Last Update:
5:44 pm CST Nov 4, 2026
Forecast Valid:
7pm CST Nov 4, 2026-6pm CST Nov 11, 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