Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89° N Lon: 97.86° W Elev: 597 ft.

Overcast

75°F

24°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 30.08 in (1017.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 16 Jul 12:56 am CDT
Detailed forecast for

Hays County

Tonight
Cloudy with a chance of showers. A slight chance of thunderstorms this evening, then a chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall this evening. Some thunderstorms may produce heavy rainfall after midnight. Near steady temperature in the lower 70s. Southeast winds around 5 mph. Gusts up to 20 mph this evening. Chance of rain 50 percent.
Thursday
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly cloudy with showers likely with a chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall. Humid with highs in the mid 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.
Thursday Night
Partly cloudy in the evening, then becoming cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent.
Friday
Mostly cloudy. Humid with highs in the upper 80s. South winds 5 to 10 mph with gusts up to 25 mph.
Friday Night
Partly cloudy in the evening, then becoming cloudy. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph.
Saturday
Mostly cloudy in the morning, then clearing. Highs in the lower 90s.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.
Sunday
Partly cloudy in the morning, then clearing. Highs in the lower 90s.
Sunday Night
Clear. Lows in the lower 70s.
Monday
Partly cloudy in the morning, then clearing. Highs in the mid 90s.
Monday Night
Clear. Lows in the lower 70s.
Tuesday
Mostly sunny. Highs in the mid 90s.
Tuesday Night
Clear. Lows in the lower 70s.
Wednesday
Mostly sunny. Highs in the mid 90s.



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456 PM CDT Wed Jul 15 2026
 
 

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