National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

90°F

32°C

Humidity 27%
Wind Speed NE 9 mph
Barometer 30.03 in (1016.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Sep 5:56 pm CDT
Extended Forecast for

Martindale TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 95. North northwest wind around 5 mph becoming northeast in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming west southwest around 5 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. East wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Thursday Night

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

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. East wind around 5 mph becoming calm after midnight.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 95. North northwest wind around 5 mph becoming northeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Calm wind becoming west southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 63. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 67. East southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 67. East wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 68.
Monday
A 20 percent chance of showers. Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Martindale TX
 29.84°N 97.83°W (Elev. 502 ft)
Last Update:
6:02 pm CDT Sep 29, 2025
Forecast Valid:
6pm CDT Sep 29, 2025-6pm CDT Oct 6, 2025
 
Forecast Discussion
 
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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