Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
64°F
18°C
| Humidity | 96% |
| Wind Speed | NE 3 mph |
| Barometer | 29.86 in (1010.7 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 22 May 3:56 am CDT |
Extended Forecast for
5 Miles SSE Wimberley TX
Flood Watch May 22, 07:00pm until May 25, 07:00pm
Today
High: 86 °F
Partly Sunny
then Slight
Chance
T-stormsTonight
Low: 70 °F
Partly Cloudy
then Slight
Chance
T-stormsSaturday
High: 81 °F
Chance
T-storms then
T-storms
LikelySaturday Night

Low: 66 °F
Showers
LikelySunday

High: 82 °F
Chance
T-stormsSunday Night

Low: 67 °F
Partly Cloudy
Memorial Day
High: 85 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night

Low: 68 °F
Mostly Clear
Tuesday
High: 85 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. South southeast wind around 5 mph.
Saturday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 81. South southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 66. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 82. Northwest wind around 5 mph becoming east northeast in the afternoon. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Memorial Day
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. North wind around 5 mph becoming east in the afternoon.
Monday Night
Mostly clear, with a low around 68. East wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT 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 am CDT May 22, 2026
4am CDT May 22, 2026-6pm CDT May 28, 2026



