Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
65°F
18°C
| Humidity | 78% |
| Wind Speed | S 7 mph |
| Barometer | 30.08 in (1018.0 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 12 Feb 10:56 pm CST |
Extended Forecast for
3 Miles WNW San Marcos TX
Tonight
Low: 58 °F
Mostly Cloudy
Friday
High: 80 °F
Patchy Fog
then Partly
SunnyFriday Night
Low: 63 °F
Mostly Cloudy
then Chance
ShowersSaturday
High: 74 °F
Showers
LikelySaturday Night
Low: 55 °F
Chance
Showers then
ClearSunday
High: 74 °F
Sunny
Sunday Night
Low: 47 °F
Mostly Clear
Washington's Birthday
High: 78 °F
Sunny
Monday Night
Low: 50 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 58. South wind around 5 mph.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 63. South southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Showers likely, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 74. South southeast wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 55. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 74. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 47. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50. South southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 84.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WNW San Marcos TX
29.9°N 97.97°W (Elev. 686 ft)
29.9°N 97.97°W (Elev. 686 ft)
11:42 pm CST Feb 12, 2026
11pm CST Feb 12, 2026-6pm CST Feb 19, 2026
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