Current conditions at

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

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

A Few Clouds

41°F

5°C

Humidity 73%
Wind Speed NE 15 mph
Barometer 30.43 in (1030.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 7 Apr 8:54 am CDT
Detailed forecast for

Calhoun County

Today
Mostly cloudy. Rain likely this morning. Highs in the lower 50s. East winds 10 to 15 mph. Chance of rain 70 percent.
Tonight
Mostly cloudy. Lows in the upper 30s. Southeast winds around 10 mph with gusts up to 20 mph.
Wednesday
Mostly sunny. Not as cool with highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night
Partly cloudy. Not as cool with lows in the lower 50s. South winds 10 to 15 mph with gusts up to 25 mph.
Thursday
Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds 10 to 15 mph. Chance of rain 20 percent.
Thursday Night
Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 40 percent.
Friday
Showers likely with a slight chance of thunderstorms. Highs in the upper 60s. Chance of rain 70 percent.
Friday Night And Saturday
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Chance of rain 50 percent.
Saturday Night
Mostly cloudy. Lows in the upper 50s.
Sunday
Partly sunny with a slight chance of showers in the morning, then mostly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.
Sunday Night And Monday
Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent.



Basemap Options
Click map to change the forecast location
Loading map...
523 AM CDT Tue Apr 7 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database