Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Thunderstorm in Vicinity Rain
61°F
16°C
| Humidity | 97% |
| Wind Speed | NE 7 mph |
| Barometer | 29.94 in (1013.2 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 1 May 6:56 am CDT |
Extended Forecast for
5 Miles SW San Marcos TX
Flood Watch May 1, 07:41am until May 1, 09:00pm
Flood Advisory May 1, 07:41am until May 1, 10:00am
NOW: Multiple hazards in effect
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Today
High: 63 °F
Heavy Rain
Tonight
Low: 52 °F
Showers
Likely then
Partly CloudySaturday
High: 72 °F
Sunny
Saturday Night
Low: 50 °F
Mostly Clear
Sunday
High: 77 °F
Mostly Sunny
Sunday Night
Low: 57 °F
Mostly Cloudy
Monday
High: 83 °F
Partly Sunny
Monday Night
Low: 67 °F
Mostly Cloudy
Detailed Forecast
Today
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 63. North northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 52. North northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 72. North wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 50. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 57. South southeast wind around 5 mph.
Monday
Partly sunny, with a high near 83. South wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 90. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 70.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles SW San Marcos TX
29.83°N 97.99°W (Elev. 676 ft)
29.83°N 97.99°W (Elev. 676 ft)
6:44 am CDT May 1, 2026
7am CDT May 1, 2026-6pm CDT May 7, 2026
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