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.

Overcast

60°F

16°C

Humidity 96%
Wind Speed NE 7 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Nov 6:56 am CST
Extended Forecast for

Martindale TX

  • Today

    Today: A 20 percent chance of showers before 3pm. Mostly cloudy, with a high near 69. Calm wind.

    High: 69 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Veterans Day

    Veterans Day: Patchy fog before 8am. Otherwise, partly sunny, with a high near 78. Calm wind.

    High: 78 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Light and variable wind becoming north 5 to 10 mph after midnight.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78. North northeast wind 5 to 10 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. Calm wind.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming south southwest around 5 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. South wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 74. Light and variable wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers before 3pm. Mostly cloudy, with a high near 69. Calm wind.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Veterans Day
Patchy fog before 8am. Otherwise, partly sunny, with a high near 78. Calm wind.
Wednesday Night
Partly cloudy, with a low around 55. Light and variable wind becoming north 5 to 10 mph after midnight.
Thursday
Sunny, with a high near 78. North northeast wind 5 to 10 mph.
Thursday Night
Clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 77. Calm wind becoming south southwest around 5 mph.
Friday Night
Mostly clear, with a low around 50. South wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 74. Light and variable wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 71.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 71.
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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:
5:46 am CST Nov 10, 2026
Forecast Valid:
7am CST Nov 10, 2026-6pm CST Nov 16, 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