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Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
76°F
24°C
| Humidity | 85% |
| Wind Speed | S 5 mph |
| Barometer | 30.02 in (1015.4 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 30 Aug 3:56 am CDT |
Extended Forecast for
3 Miles NNW Luling TX
Today
High: 99 °F
Hot
Tonight
Low: 75 °F
Mostly Clear
Monday
High: 99 °F
Hot
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 99 °F
Hot
Tuesday Night
Low: 75 °F
Mostly Clear
Wednesday
High: 100 °F
Hot
Wednesday Night
Low: 74 °F
Mostly Clear
then Slight
Chance
ShowersThursday
High: 99 °F
Sunny then
Slight Chance
T-storms
Detailed Forecast
Today
Sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming light south after midnight.
Tuesday
Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. Southeast wind 5 to 10 mph becoming light south after midnight.
Wednesday
Sunny and hot, with a high near 100. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming light south after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74.
Friday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Luling TX
29.73°N 97.65°W (Elev. 446 ft)
29.73°N 97.65°W (Elev. 446 ft)
2:46 am CDT Aug 30, 2026
4am CDT Aug 30, 2026-6pm CDT Sep 5, 2026
Additional Resources
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