Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

72°F

22°C

Humidity 30%
Wind Speed NE 13 G 16 mph
Barometer 30.23 in (1023.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 6 Apr 2:56 pm CDT
Extended Forecast for

4 Miles WSW Martindale TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. East northeast wind 5 to 10 mph becoming light north northeast  after midnight.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. North wind around 5 mph becoming east southeast in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. East wind around 5 mph becoming calm  after midnight.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 78. Calm wind becoming east southeast around 5 mph in the morning.

    High: 78 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. Southeast wind around 5 mph.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 83. Light east southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 83 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. Southeast wind 5 to 10 mph.

    Low: 64 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 80. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 74. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 47. East northeast wind 5 to 10 mph becoming light north northeast after midnight.
Tuesday
Mostly sunny, with a high near 76. North wind around 5 mph becoming east southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 53. East wind around 5 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 78. Calm wind becoming east southeast around 5 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 61. Southeast wind around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light east southeast wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southeast wind 5 to 10 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Martindale TX
 29.81°N 97.91°W (Elev. 581 ft)
2:46 pm CDT Apr 6, 2026
3pm CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
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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