
Prolonged Extreme Cold; Eastern U.S. Winter Storm
Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
36°F
2°C
| Humidity | 82% |
| Wind Speed | NW 6 mph |
| Barometer | 30.30 in (1026.2 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 31°F (-1°C) |
| Last update | 28 Jan 10:56 pm CST |
Extended Forecast for
Mountain City TX
Tonight

Low: 31 °F
Partly Cloudy
Thursday

High: 67 °F
Mostly Sunny
Thursday Night

Low: 33 °F
Mostly Cloudy
Friday

High: 55 °F
Decreasing
CloudsFriday Night

Low: 28 °F
Mostly Clear
Saturday

High: 43 °F
Sunny
Saturday Night

Low: 20 °F
Clear
Sunday

High: 51 °F
Sunny
Sunday Night

Low: 31 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 31. Calm wind becoming southwest around 5 mph.
Thursday
Mostly sunny, with a high near 67. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 55. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 28. North wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 43. North wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 20. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 51. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 31. South wind around 5 mph becoming west southwest after midnight.
Monday
Mostly sunny, with a high near 62.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 66.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mountain City TX
30.04°N 97.89°W (Elev. 837 ft)
30.04°N 97.89°W (Elev. 837 ft)
10:32 pm CST Jan 28, 2026
11pm CST Jan 28, 2026-6pm CST Feb 4, 2026


