Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
79°F
26°C
| Humidity | 15% |
| Wind Speed | S 7 mph |
| Barometer | 30.19 in (1022.2 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 6 Feb 11:56 am CST |
Extended Forecast for
5 Miles SW San Marcos TX
This Afternoon

High: 82 °F
Sunny
Tonight

Low: 48 °F
Clear
Saturday

High: 80 °F
Sunny
Saturday Night

Low: 50 °F
Partly Cloudy
Sunday

High: 75 °F
Partly Sunny
Sunday Night

Low: 55 °F
Mostly Cloudy
Monday

High: 76 °F
Mostly Cloudy
Monday Night

Low: 58 °F
Chance
ShowersTuesday

High: 77 °F
Chance
Showers
Detailed Forecast
This Afternoon
Sunny, with a high near 82. West northwest wind around 5 mph becoming north northeast.
Tonight
Clear, with a low around 48. Calm wind becoming west around 5 mph.
Saturday
Sunny, with a high near 80. North wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 75. Light south southwest wind becoming south 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 55. South wind around 5 mph.
Monday
Mostly cloudy, with a high near 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. South wind 5 to 10 mph.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 79.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles SW San Marcos TX
29.81°N 97.99°W (Elev. 653 ft)
29.81°N 97.99°W (Elev. 653 ft)
11:45 am CST Feb 6, 2026
12pm CST Feb 6, 2026-6pm CST Feb 12, 2026


