Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
91°F
33°C
| Humidity | 32% |
| Wind Speed | Calm |
| Barometer | 30.00 in (1015.3 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 90°F (32°C) |
| Last update | 21 May 12:56 pm CDT |
Extended Forecast for
San Marcos Municipal Airport TX
This Afternoon
High: 96 °F
Sunny
Tonight
Low: 73 °F
Mostly Cloudy
Thursday
High: 99 °F
Patchy Fog
then SunnyThursday Night
Low: 70 °F
Partly Cloudy
Friday
High: 97 °F
Mostly Sunny
Friday Night
Low: 73 °F
Partly Cloudy
Saturday
High: 99 °F
Hot
Saturday Night
Low: 75 °F
Partly Cloudy
Sunday
High: 98 °F
Partly Sunny
then Slight
Chance
T-storms
Detailed Forecast
This Afternoon
Sunny, with a high near 96. East wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph becoming south after midnight.
Thursday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Light south wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 97. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and hot, with a high near 99. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 75. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
San Marcos Municipal Airport TX
29.88°N 97.89°W (Elev. 597 ft)
29.88°N 97.89°W (Elev. 597 ft)
1:48 pm CDT May 21, 2025
1pm CDT May 21, 2025-6pm CDT May 27, 2025
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