Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Overcast
72°F
22°C
| Humidity | 87% |
| Wind Speed | S 10 mph |
| Barometer | 29.97 in (1014.2 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Last update | 10 Mar 2:56 am CDT |
Extended Forecast for
3 Miles WSW San Marcos TX
Overnight
Low: 68 °F
Cloudy
Tuesday
High: 83 °F
Chance
ShowersTuesday Night
Low: 62 °F
Slight Chance
T-storms then
Showers
LikelyWednesday
High: 81 °F
Chance
T-stormsWednesday Night
Low: 49 °F
Chance
T-storms then
Slight Chance
ShowersThursday
High: 69 °F
Sunny
Thursday Night
Low: 46 °F
Clear
Friday
High: 78 °F
Sunny
Friday Night
Low: 53 °F
Clear
Detailed Forecast
Overnight
Cloudy, with a low around 68. South wind around 10 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Cloudy, with a high near 83. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 62. South southeast wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 50 percent chance of showers and thunderstorms. Cloudy through mid morning, then gradual clearing, with a high near 81. North northeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 49. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 69. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 46. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 78. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 53. South wind around 5 mph.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Partly sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 67.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW San Marcos TX
29.86°N 97.97°W (Elev. 646 ft)
29.86°N 97.97°W (Elev. 646 ft)
2:46 am CDT Mar 10, 2026
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
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