Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Overcast
74°F
23°C
| Humidity | 79% |
| Wind Speed | S 14 mph |
| Barometer | 29.95 in (1013.5 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 7 Mar 8:56 am CST |
Extended Forecast for
5 Miles WSW Martindale TX
Today
High: 79 °F⇓
Chance
Showers then
T-stormsTonight
Low: 54 °F
T-storms
LikelySunday
High: 70 °F
Showers
Likely then
Chance
T-stormsSunday Night
Low: 62 °F
Slight Chance
T-storms then
CloudyMonday
High: 83 °F
Chance
ShowersMonday Night
Low: 68 °F
Mostly Cloudy
then Slight
Chance
T-stormsTuesday
High: 83 °F
Chance
ShowersTuesday Night
Low: 62 °F
Showers
LikelyWednesday
High: 81 °F
Chance
Showers
Detailed Forecast
Today
A chance of showers and thunderstorms before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Temperature rising to near 79 by noon, then falling to around 69 during the remainder of the day. South wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 54. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 70. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A chance of showers, with thunderstorms also possible after 9am. Cloudy, with a high near 83. Light east southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers and thunderstorms after midnight. Cloudy, with a low around 68. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 83. South wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers, mainly before noon. Sunny, with a high near 81. South southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 70.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 77.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Martindale TX
29.81°N 97.91°W (Elev. 581 ft)
29.81°N 97.91°W (Elev. 581 ft)
9:24 am CST Mar 7, 2026
9am CST Mar 7, 2026-6pm CDT Mar 13, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
