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Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
87°F
31°C
| Humidity | 70% |
| Wind Speed | E 12 mph |
| Barometer | 30.08 in (1017.6 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 98°F (37°C) |
| Last update | 24 Jun 5:56 pm CDT |
Extended Forecast for
San Marcos TX
Tonight
Low: 72 °F
Slight Chance
T-storms then
Partly CloudyWednesday
High: 91 °F
Partly Sunny
then Chance
T-stormsWednesday Night
Low: 73 °F
Chance
T-storms then
Mostly CloudyThursday
High: 92 °F
Mostly Sunny
Thursday Night
Low: 72 °F
Partly Cloudy
Friday
High: 94 °F
Mostly Sunny
Friday Night
Low: 73 °F
Partly Cloudy
Saturday
High: 93 °F
Mostly Sunny
Saturday Night
Low: 74 °F
Partly Cloudy
Detailed Forecast
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph becoming light after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 91. Light east wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph becoming light south southeast after midnight.
Thursday
Mostly sunny, with a high near 92. Light south southeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph becoming light south after midnight.
Friday
Mostly sunny, with a high near 94. Light south wind becoming south southeast 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 73. South southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 93. Light south wind becoming south southeast 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly cloudy, with a low around 74.
Tuesday
Partly sunny, with a high near 95.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
San Marcos TX
29.88°N 97.94°W (Elev. 577 ft)
29.88°N 97.94°W (Elev. 577 ft)
6:02 pm CDT Jun 24, 2025
6pm CDT Jun 24, 2025-6pm CDT Jul 1, 2025
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