Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93° N Lon: 90.43° W Elev: 436 ft.

Fair

68°F

20°C

Humidity 84%
Wind Speed E 3 mph
Barometer 30.11 in (1019.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 Aug 11:54 pm CDT
Detailed forecast for

Calhoun County

Overnight
Mostly cloudy. Lows in the lower 60s. East winds around 5 mph.
Sunday
Partly sunny. Highs around 80. East winds 5 to 10 mph.
Sunday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. East winds around 5 mph.
Labor Day
Partly sunny. Highs in the upper 70s. East winds around 5 mph.
Monday Night
Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.
Tuesday And Tuesday Night
Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Wednesday
Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.
Wednesday Night
Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 40s. Chance of rain 20 percent.
Thursday
Sunny, cooler with highs in the upper 60s.
Thursday Night And Friday
Partly cloudy. Lows in the mid 40s. Highs in the lower 70s.
Friday Night And Saturday
Mostly clear. Lows in the upper 40s. Highs in the upper 70s.



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1024 PM CDT Sat Aug 30 2025
 
 

Additional Resources

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National Digital Forecast Database