Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Mostly Cloudy
91°F
33°C
| Humidity | 52% |
| Wind Speed | E 8 mph |
| Barometer | 29.99 in (1014.9 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 98°F (37°C) |
| Last update | 23 Sep 4:56 pm CDT |
Extended Forecast for
3 Miles WSW Kyle TX
This Afternoon

High: 98 °F
Slight Chance
T-stormsTonight
Low: 74 °F
Slight Chance
T-storms then
Mostly CloudyThursday

High: 98 °F
Mostly Sunny
Thursday Night

Low: 74 °F
Decreasing
CloudsFriday

High: 97 °F
Mostly Sunny
Friday Night

Low: 73 °F
Partly Cloudy
Saturday

High: 97 °F
Partly Sunny
Saturday Night

Low: 73 °F
Mostly Cloudy
Sunday

High: 97 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 98. Heat index values as high as 103. East southeast wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph in the morning.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 74. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 97. Calm wind becoming south around 5 mph.
Saturday Night
Mostly cloudy, with a low around 73. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 97. Calm wind becoming south southwest around 5 mph.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 95.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Kyle TX
29.97°N 97.92°W (Elev. 650 ft)
29.97°N 97.92°W (Elev. 650 ft)
3:44 pm CDT Sep 23, 2026
5pm CDT Sep 23, 2026-6pm CDT Sep 30, 2026


