Tracking Storms with Impacts in the Northwest and Northeast U.S.
A Pacific storm will move across the Northwest U.S. through Thursday with low elevation rainfall, gusty winds, and mountain snows. A storm crossing the Northeast U.S. will continue gusty to high winds, scattered rain showers and limited snow showers into Thursday. Read More >
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
66°F
19°C
| Humidity | 65% |
| Wind Speed | S 8 mph |
| Barometer | 30.12 in (1019.6 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 5 Nov 8:56 pm CST |
Extended Forecast for
San Marcos TX
Tonight
Low: 57 °F
Clear then
Patchy FogThursday
High: 83 °F
Patchy Fog
then SunnyThursday Night
Low: 61 °F
Mostly Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 58 °F
Clear
Saturday
High: 87 °F
Sunny
Saturday Night
Low: 58 °F
Clear
Sunday
High: 69 °F
Sunny
Sunday Night
Low: 42 °F
Clear
Detailed Forecast
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 57. South southwest wind around 5 mph becoming calm after midnight.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Light south southwest wind becoming south 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 61. South wind 5 to 10 mph.
Friday
Sunny, with a high near 88. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 58. South southwest wind around 5 mph becoming north after midnight.
Saturday
Sunny, with a high near 87. North wind around 5 mph becoming south southeast in the afternoon.
Saturday Night
Clear, with a low around 58. South southeast wind 5 to 10 mph becoming north northeast 10 to 15 mph after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 69. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 42. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 39.
Veterans Day
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 80.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
8:31 pm CST Nov 5, 2025
9pm CST Nov 5, 2025-6pm CST Nov 12, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
