Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
66°F
19°C
| Humidity | 49% |
| Wind Speed | NE 10 mph |
| Barometer | 29.76 in (1007.1 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 20 Feb 5:56 pm CST |
Extended Forecast for
2 Miles SW San Marcos Municipal Airport TX
Red Flag Warning February 21, 10:00am until February 21, 09:00pm
Tonight
Low: 54 °F
Mostly Cloudy
Saturday
High: 76 °F
Decreasing
CloudsSaturday Night
Low: 40 °F
Mostly Clear
Sunday
High: 65 °F
Sunny
Sunday Night
Low: 36 °F
Mostly Clear
Monday
High: 67 °F
Sunny
Monday Night
Low: 39 °F
Mostly Clear
Tuesday
High: 74 °F
Mostly Sunny
Tuesday Night
Low: 54 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 54. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 76. North wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly clear, with a low around 40. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 36. Northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 67. North wind around 5 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 39. East southeast wind around 5 mph becoming south southwest after midnight.
Tuesday
Mostly sunny, with a high near 74. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SW San Marcos Municipal Airport TX
29.88°N 97.89°W (Elev. 597 ft)
29.88°N 97.89°W (Elev. 597 ft)
5:44 pm CST Feb 20, 2026
6pm CST Feb 20, 2026-6pm CST Feb 27, 2026
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