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 SE 15 mph
Barometer 29.82 in (1009.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 10 Mar 10:56 pm CDT
Extended Forecast for

2 Miles WNW San Marcos Municipal Airport TX

Severe T-storm Watch March 10, 11:37pm until March 11, 02:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch March 10, 11:37pm until March 11, 02:00am

    NOW until 2:00am Wed

    Severe T-storm Watch

  • Tonight

    Low: 62 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North wind around 15 mph, with gusts as high as 30 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Clear

  • Friday

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

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. South wind around 5 mph.

    Low: 53 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 62. South wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly clear, with a low around 47. North wind around 15 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 69. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 53. South wind around 5 mph.
Saturday
Sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 60. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW San Marcos Municipal Airport TX
 29.9°N 97.91°W (Elev. 640 ft)
11:32 pm CDT Mar 10, 2026
11pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026
 
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