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Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
A Few Clouds
58°F
14°C
| Humidity | 67% |
| Wind Speed | N 5 mph |
| Barometer | 30.29 in (1025.3 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 5 Apr 9:56 pm CDT |
Extended Forecast for
4 Miles NNW San Marcos Municipal Airport TX
Tonight
Low: 50 °F
Mostly Cloudy
Monday
High: 72 °F
Mostly Sunny
Monday Night
Low: 48 °F
Increasing
CloudsTuesday
High: 73 °F
Partly Sunny
Tuesday Night
Low: 54 °F
Mostly Cloudy
Wednesday
High: 76 °F
Partly Sunny
Wednesday Night
Low: 59 °F
Mostly Cloudy
Thursday
High: 82 °F
Cloudy then
Slight Chance
T-stormsThursday Night
Low: 62 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Mostly cloudy, with a low around 50. North northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 48. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 73. Calm wind becoming east around 5 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 54. East wind around 5 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 76. Calm wind becoming east southeast around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 59. South southeast wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Light southeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. Southeast wind 5 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 82.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 80.
Saturday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 66.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles NNW San Marcos Municipal Airport TX
29.95°N 97.89°W (Elev. 646 ft)
29.95°N 97.89°W (Elev. 646 ft)
6:46 pm CDT Apr 5, 2026
10pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
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