Tracking Weekend Storm Impacts
A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
77°F
25°C
| Humidity | 35% |
| Wind Speed | N 12 mph |
| Barometer | 29.95 in (1013.6 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 7 Dec 11:56 am CST |
Extended Forecast for
San Marcos TX
This Afternoon
High: 70 °F⇓
Sunny
Tonight
Low: 40 °F
Clear
Monday
High: 62 °F
Sunny
Monday Night
Low: 37 °F
Clear
Tuesday
High: 67 °F
Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 75 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 79 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a temperature falling to around 61 by 5pm. North wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 40. North wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 62. North wind 5 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 37. East northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 67. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 47. South southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 75. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 48. South wind around 5 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 79. West wind around 5 mph becoming south southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 55.
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)
11:52 am CST Dec 7, 2025
12pm CST Dec 7, 2025-6pm CST Dec 13, 2025
Additional Resources
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