Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Mostly Cloudy with Haze
80°F
27°C
| Humidity | 67% |
| Wind Speed | S 7 mph |
| Barometer | 29.96 in (1013.9 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 2.50 mi |
| Heat Index | 83°F (28°C) |
| Last update | 21 May 1:56 pm CDT |
Extended Forecast for
5 Miles SSE Wimberley TX
Flood Watch May 22, 07:00pm until May 25, 07:00pm
This Afternoon
High: 79 °F
Chance
T-stormsTonight
Low: 66 °F
Chance
ShowersFriday
High: 85 °F
Slight Chance
T-stormsFriday Night
Low: 69 °F
Slight Chance
T-storms then
Slight Chance
ShowersSaturday
High: 81 °F
Chance
T-storms then
ShowersSaturday Night
Low: 66 °F
Showers
LikelySunday
High: 82 °F
Chance
T-storms then
Showers
LikelySunday Night
Low: 67 °F
Chance
T-stormsMemorial Day
High: 84 °F
Chance
T-storms
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming south southwest in the evening. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 81. South southeast wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. East northeast wind around 5 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Memorial Day
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 84. Northeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles SSE Wimberley TX
29.92°N 98.07°W (Elev. 1047 ft)
29.92°N 98.07°W (Elev. 1047 ft)
2:46 pm CDT May 21, 2026
2pm CDT May 21, 2026-6pm CDT May 27, 2026
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