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Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
96°F
36°C
| Humidity | 39% |
| Wind Speed | S 9 mph |
| Barometer | 29.79 in (1007.8 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 22 Sep 5:56 pm CDT |
Extended Forecast for
Lockhart TX
Tonight
Low: 74 °F
Slight Chance
T-storms then
Mostly ClearTuesday
High: 99 °F
Hot
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 95 °F
Showers
LikelyWednesday Night
Low: 70 °F
Chance
T-stormsThursday
High: 88 °F
Chance
ShowersThursday Night
Low: 61 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 60 °F
Mostly Clear
Detailed Forecast
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 104. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 100. South southwest wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. North northeast wind around 5 mph becoming calm.
Thursday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly sunny, with a high near 88. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 61. North northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. North northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 60. East northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lockhart TX
29.88°N 97.68°W (Elev. 525 ft)
29.88°N 97.68°W (Elev. 525 ft)
6:42 pm CDT Sep 22, 2025
6pm CDT Sep 22, 2025-6pm CDT Sep 29, 2025
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