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Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Thunderstorm in Vicinity
82°F
28°C
| Humidity | 63% |
| Wind Speed | NE 20 G 31 mph |
| Barometer | 30.04 in (1016.5 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 15 Jun 3:56 pm CDT |
Extended Forecast for
5 Miles W San Marcos TX
This Afternoon
High: 91 °F
Chance
T-stormsTonight
Low: 75 °F
Chance
T-storms then
Mostly CloudyMonday
High: 93 °F
Decreasing
CloudsMonday Night
Low: 74 °F
Partly Cloudy
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 73 °F
Mostly Clear
Wednesday
High: 93 °F
Mostly Sunny
Wednesday Night
Low: 74 °F
Partly Cloudy
Juneteenth
High: 91 °F
Partly Sunny
then Chance
T-storms
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 75. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 102. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 74. South southeast wind around 10 mph.
Tuesday
Sunny, with a high near 94. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Juneteenth
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 72.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 72.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles W San Marcos TX
29.88°N 98.02°W (Elev. 797 ft)
29.88°N 98.02°W (Elev. 797 ft)
3:42 pm CDT Jun 15, 2025
4pm CDT Jun 15, 2025-6pm CDT Jun 22, 2025
Additional Resources
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