Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
76°F
24°C
| Humidity | 100% |
| Wind Speed | SE 8 mph |
| Barometer | 29.82 in (1009.0 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 75°F (24°C) |
| Last update | 18 May 6:56 am CDT |
Extended Forecast for
2 Miles W San Marcos Municipal Airport TX
Today
High: 96 °F
Haze then
Mostly CloudyTonight
Low: 74 °F
Mostly Cloudy
Monday
High: 97 °F
Mostly Cloudy
then Slight
Chance
T-stormsMonday Night
Low: 73 °F
Isolated
T-stormsTuesday
High: 97 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 95 °F
Partly Sunny
Wednesday Night
Low: 69 °F
Mostly Cloudy
Thursday
High: 93 °F
Mostly Sunny
then Isolated
T-storms
Detailed Forecast
Today
Widespread haze before 11am. Mostly cloudy, with a high near 96. Heat index values as high as 104. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 97. Heat index values as high as 107. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Isolated showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 97. South wind around 5 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 68. Northeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 95. East wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 69. East wind 5 to 10 mph becoming south southeast after midnight.
Thursday
Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 69.
Saturday
Mostly sunny, with a high near 97.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles W San Marcos Municipal Airport TX
29.9°N 97.91°W (Elev. 640 ft)
29.9°N 97.91°W (Elev. 640 ft)
6:44 am CDT May 18, 2025
7am CDT May 18, 2025-6pm CDT May 24, 2025
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