Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

72°F

22°C

Humidity 87%
Wind Speed S 9 mph
Barometer 30.10 in (1018.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 12 Apr 1:56 am CDT
Extended Forecast for

5 Miles SSE Wimberley TX

Severe T-storm Watch until April 12, 08:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until April 12, 08:00am

    NOW until 8:00am Sun

    Severe T-storm Watch

  • Overnight

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 1pm, then showers and thunderstorms likely after 1pm. Some of the storms could be severe.  High near 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before 1am.  Cloudy, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Cloudy then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Cloudy then
    Chance
    T-storms

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm, mainly before 1pm, then showers and thunderstorms likely after 1pm. Some of the storms could be severe. High near 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A 40 percent chance of showers and thunderstorms before 1am. Cloudy, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 66. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Mostly cloudy, with a high near 87.
Friday Night
Mostly cloudy, with a low around 68.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
1:44 am CDT Apr 12, 2026
2am CDT Apr 12, 2026-6pm CDT Apr 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