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
35°F
2°C
| Humidity | 70% |
| Wind Speed | NW 7 mph |
| Barometer | 30.33 in (1027.0 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 15 Jan 7:56 am CST |
Extended Forecast for
2 Miles W San Marcos Municipal Airport TX
Today
High: 66 °F
Sunny
Tonight
Low: 43 °F
Clear
Friday
High: 74 °F
Sunny
Friday Night
Low: 41 °F
Mostly Clear
Saturday
High: 55 °F
Mostly Sunny
Saturday Night
Low: 29 °F
Mostly Clear
Sunday
High: 60 °F
Sunny
Sunday Night
Low: 37 °F
Mostly Clear
M.L.King Day
High: 64 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 66. North northwest wind around 5 mph becoming south in the afternoon.
Tonight
Clear, with a low around 43. South southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 74. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 41. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 55. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 29. North northeast wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 60. West northwest wind around 5 mph becoming south southwest in the morning.
Sunday Night
Mostly clear, with a low around 37. South wind around 5 mph.
M.L.King Day
Mostly sunny, with a high near 64. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
A 20 percent chance of showers. Cloudy, with a high near 53.
Tuesday Night
A 30 percent chance of showers. Cloudy, with a low around 43.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 60.
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)
7:50 am CST Jan 15, 2026
8am CST Jan 15, 2026-6pm CST Jan 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
