Great Lakes Snow through Friday; High Winds in the Northern and Central Plains
A clipper storm will drop south from Canada today bringing wintry weather from the Upper Midwest to the Great Lakes through Friday. This system is expected to bring strong northerly winds to much of the northern and central High Plains this afternoon through Friday, with gusts up to 60 mph expected. Read More >
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
61°F
16°C
| Humidity | 34% |
| Wind Speed | S 12 mph |
| Barometer | 30.04 in (1017.1 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Last update | 15 Jan 5:56 pm CST |
Extended Forecast for
San Marcos TX
Tonight
Low: 42 °F
Clear
Friday
High: 73 °F
Sunny
Friday Night
Low: 42 °F
Mostly Clear
Saturday
High: 54 °F
Mostly Sunny
Saturday Night
Low: 27 °F
Mostly Clear
Sunday
High: 60 °F
Sunny
Sunday Night
Low: 35 °F
Mostly Clear
M.L.King Day
High: 65 °F
Mostly Sunny
Monday Night
Low: 39 °F
Mostly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 42. South southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 73. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 42. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 54. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 27. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 60. Northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 35. South southwest wind around 5 mph.
M.L.King Day
Mostly sunny, with a high near 65. South southwest wind 5 to 10 mph becoming east in the afternoon.
Monday Night
Mostly cloudy, with a low around 39. North northeast wind 5 to 10 mph.
Tuesday
Cloudy, with a high near 55.
Tuesday Night
A 30 percent chance of showers. Cloudy, with a low around 44.
Wednesday
A 30 percent chance of showers. Cloudy, with a high near 61.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 49.
Thursday
Partly sunny, with a high near 67.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
San Marcos TX
29.88°N 97.91°W (Elev. 597 ft)
29.88°N 97.91°W (Elev. 597 ft)
5:46 pm CST Jan 15, 2026
6pm CST Jan 15, 2026-6pm CST Jan 22, 2026
Additional Resources
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