Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

52°F

11°C

Humidity 75%
Wind Speed N 5 mph
Barometer 30.20 in (1022.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 12 Feb 1:56 am CST
Extended Forecast for

5 Miles SSE Wimberley TX

  • Overnight

    Overnight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South southeast wind around 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers likely after midnight.  Mostly cloudy, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 61 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 9am.  High near 78. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 100%.

    High: 78 °F

    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Mostly clear, with a low around 54. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Slight Chance
    Showers then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 75. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North wind around 5 mph becoming calm  in the evening.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 50. Calm wind.
Thursday
Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. South southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Showers likely after midnight. Mostly cloudy, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Showers, with thunderstorms also possible after 9am. High near 78. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Saturday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 54. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 75. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 45. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
12:44 am CST Feb 12, 2026
2am CST Feb 12, 2026-6pm CST Feb 18, 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