Areas of Excessive Rainfall and Severe Thunderstorms Friday

Heavy thunderstorms may bring areas of excessive rainfall and locally considerable flooding over parts of the Ozarks into the lower-Mississippi River Valley Friday and Saturday. Scattered severe thunderstorms may occur Friday from Montana into the central Plains, with hail and corridors of damaging winds possible. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

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

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.92 in (1012.6 mb)
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 13 Jun 2:56 am CDT
Detailed forecast for

Caldwell County

Today
Partly cloudy. Patchy fog this morning. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Warmer with highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 30 percent. Highest heat index readings up to 105.
Tonight
Mostly clear in the evening, then becoming mostly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph.
Saturday
Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 30 percent. Highest heat index readings up to 106.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph.
Sunday
Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 30 percent.
Sunday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.
Monday
Partly cloudy in the morning, then clearing. A slight chance of showers and thunderstorms. Highs in the mid 90s.
Monday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.
Tuesday And Tuesday Night
Mostly clear. Highs in the mid 90s. Lows in the mid 70s.
Wednesday And Wednesday Night
Partly cloudy. Highs in the mid 90s. Lows in the mid 70s. Highest heat index readings up to 105.
Juneteenth
Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.



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146 AM CDT Fri Jun 13 2025
 
 

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