Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
87°F
31°C
| Humidity | 55% |
| Wind Speed | S 16 G 22 mph |
| Barometer | 29.99 in (1014.7 mb) |
| Dewpoint | 69°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 91°F (33°C) |
| Last update | 19 May 11:56 am CDT |
Extended Forecast for
2 Miles SSW Lockhart TX
This Afternoon
High: 91 °F
Chance
T-stormsTonight
Low: 73 °F
T-storms then
ShowersWednesday
High: 86 °F
Chance
Showers then
Showers
LikelyWednesday Night
Low: 72 °F
Showers
Thursday
High: 82 °F
Showers
Thursday Night
Low: 70 °F
Showers
LikelyFriday
High: 85 °F
Slight Chance
T-storms then
Showers
LikelyFriday Night
Low: 71 °F
Showers
LikelySaturday
High: 82 °F
Showers
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 91. South southeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Low around 73. Southeast wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm. Low around 72. Southeast wind around 5 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 82. South wind 5 to 10 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South southeast wind around 5 mph becoming calm. Chance of precipitation is 70%.
Friday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm. High near 82. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Memorial Day
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Lockhart TX
29.86°N 97.7°W (Elev. 545 ft)
29.86°N 97.7°W (Elev. 545 ft)
11:32 am CDT May 19, 2026
12pm CDT May 19, 2026-6pm CDT May 25, 2026
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