
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
29°F
-2°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 30.17 in (1021.6 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 29 Jan 5:56 am CST |
Extended Forecast for
2 Miles SSW Lockhart TX
Today

High: 68 °F
Mostly Sunny
Tonight

Low: 33 °F
Partly Cloudy
Friday

High: 56 °F
Partly Sunny
Friday Night

Low: 28 °F
Mostly Clear
Saturday

High: 44 °F
Sunny
Saturday Night

Low: 19 °F
Mostly Clear
Sunday

High: 53 °F
Sunny
Sunday Night

Low: 31 °F
Mostly Clear
Monday

High: 62 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 68. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 33. North wind 5 to 15 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 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 44. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 19. North northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 53. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 31. South southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 62. Calm wind becoming south southeast around 5 mph in the morning.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly cloudy, with a high near 70.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Lockhart TX
29.86°N 97.7°W (Elev. 545 ft)
29.86°N 97.7°W (Elev. 545 ft)
5:42 am CST Jan 29, 2026
6am CST Jan 29, 2026-6pm CST Feb 4, 2026


