Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
A Few Clouds
63°F
17°C
| Humidity | 84% |
| Wind Speed | S 9 mph |
| Barometer | 30.11 in (1019.0 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 9 Feb 11:56 pm CST |
Extended Forecast for
2 Miles W San Marcos Municipal Airport TX
Overnight
Low: 58 °F
Mostly Cloudy
Tuesday
High: 75 °F
Patchy Fog
then CloudyTuesday Night
Low: 57 °F
Chance
ShowersWednesday
High: 75 °F
Slight Chance
Showers then
Mostly SunnyWednesday Night
Low: 56 °F
Partly Cloudy
Thursday
High: 81 °F
Partly Sunny
Thursday Night
Low: 60 °F
Partly Cloudy
Friday
High: 83 °F
Mostly Cloudy
Friday Night
Low: 61 °F
Slight Chance
Showers then
Showers
Likely
Detailed Forecast
Overnight
Mostly cloudy, with a low around 58. South wind around 5 mph.
Tuesday
Patchy fog between 7am and 10am. Otherwise, cloudy, with a high near 75. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers, mainly after 9pm. Mostly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 60. South wind around 5 mph.
Friday
Mostly cloudy, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. Chance of precipitation is 70%.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 45.
Washington's Birthday
Sunny, with a high near 79.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles W San Marcos Municipal Airport TX
29.9°N 97.91°W (Elev. 640 ft)
29.9°N 97.91°W (Elev. 640 ft)
11:49 pm CST Feb 9, 2026
12am CST Feb 10, 2026-6pm CST Feb 16, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
