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

71°F

22°C

Humidity 76%
Wind Speed NE 7 mph
Barometer 30.09 in (1017.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Oct 11:56 pm CDT
Extended Forecast for

Martindale TX

Wind Advisory October 16, 04:00am until October 16, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. Light northeast wind becoming north 10 to 15 mph. Winds could gust as high as 30 mph.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 68. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 68 °F

    Decreasing
    Clouds and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 68. North northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. North wind around 5 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. North wind around 5 mph becoming calm in the afternoon.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 79. Calm wind becoming east around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. Light northeast wind becoming north 10 to 15 mph. Winds could gust as high as 30 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.
Friday Night
Mostly clear, with a low around 49. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday
Sunny, with a high near 68. North northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 47. North wind around 5 mph.
Sunday
Sunny, with a high near 73. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
Mostly clear, with a low around 51. Calm wind.
Monday
Mostly sunny, with a high near 79. Calm wind becoming east around 5 mph.
Monday Night
Partly cloudy, with a low around 57. Calm wind.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
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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:
11:52 pm CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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