Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
63°F
17°C
| Humidity | 37% |
| Wind Speed | N 14 mph |
| Barometer | 30.41 in (1029.7 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 4 Feb 11:56 am CST |
Extended Forecast for
3 Miles NNW San Marcos Municipal Airport TX
This Afternoon
High: 65 °F
Sunny
Tonight
Low: 37 °F
Clear
Thursday
High: 69 °F
Sunny
Thursday Night
Low: 44 °F
Clear
Friday
High: 79 °F
Sunny
Friday Night
Low: 46 °F
Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 48 °F
Partly Cloudy
Sunday
High: 78 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 65. North wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 37. North wind 5 to 10 mph.
Thursday
Sunny, with a high near 69. North northwest wind around 5 mph.
Thursday Night
Clear, with a low around 44. West southwest wind around 5 mph.
Friday
Sunny, with a high near 79. West wind around 5 mph becoming northeast in the afternoon.
Friday Night
Clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 48. South wind around 5 mph.
Sunday
Partly sunny, with a high near 78. South wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly cloudy, with a high near 78.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 76.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 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)
11:49 am CST Feb 4, 2026
12pm CST Feb 4, 2026-6pm CST Feb 10, 2026
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