Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
68°F
20°C
| Humidity | 59% |
| Wind Speed | E 6 mph |
| Barometer | 30.13 in (1020.0 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 2 May 7:56 pm CDT |
Extended Forecast for
3 Miles NNW San Marcos Municipal Airport TX
Tonight
Low: 52 °F
Clear
Sunday
High: 78 °F
Sunny
Sunday Night
Low: 56 °F
Partly Cloudy
Monday
High: 83 °F
Mostly Sunny
Monday Night
Low: 68 °F
Mostly Cloudy
Tuesday
High: 87 °F
Mostly Cloudy
Tuesday Night
Low: 72 °F
Mostly Cloudy
Wednesday
High: 88 °F
Chance
T-stormsWednesday Night
Low: 61 °F
Mostly Cloudy
then Slight
Chance
Showers
Detailed Forecast
Tonight
Clear, with a low around 52. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 83. South wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 72. South southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. South wind 5 to 10 mph becoming west northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 76.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 58.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNW San Marcos Municipal Airport TX
29.95°N 97.89°W (Elev. 646 ft)
29.95°N 97.89°W (Elev. 646 ft)
6:44 pm CDT May 2, 2026
8pm CDT May 2, 2026-6pm CDT May 9, 2026
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