Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
59°F
15°C
| Humidity | 87% |
| Wind Speed | S 7 mph |
| Barometer | 30.14 in (1020.3 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 8:56 am CDT |
Extended Forecast for
San Marcos TX
Today
High: 88 °F
Sunny
Tonight
Low: 58 °F
Mostly Clear
Saturday
High: 93 °F
Sunny
Saturday Night
Low: 60 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Monday
High: 88 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 89 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 88. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 58. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 93. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 60. South wind around 10 mph.
Sunday
Sunny, with a high near 93. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 58. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 88. South southwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 59. South southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 89. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 92.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
San Marcos TX
29.88°N 97.94°W (Elev. 577 ft)
29.88°N 97.94°W (Elev. 577 ft)
7:44 am CDT Mar 20, 2026
9am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
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