Current conditions at

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

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

Fair

37°F

3°C

Humidity 62%
Wind Speed Calm
Barometer 30.31 in (1026.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 11 Feb 6:54 pm CST
Detailed forecast for

Calhoun County

Tonight
Mostly clear this evening, then becoming mostly cloudy. Lows in the lower 30s. North winds around 5 mph this evening, becoming light and variable.
Thursday
Mostly cloudy. Highs around 50. South winds around 5 mph.
Thursday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows around 30. Southeast winds around 5 mph.
Friday
Sunny. Highs in the mid 50s. South winds 5 to 10 mph.
Friday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s. South winds around 5 mph.
Saturday And Saturday Night
Mostly cloudy with a 50 percent chance of rain. Highs in the lower 50s. Lows in the upper 30s.
Sunday
Mostly sunny. A slight chance of rain in the morning. Highs in the mid 50s. Chance of rain 20 percent.
Sunday Night
Mostly clear. Lows in the mid 30s.
Washingtons Birthday
Mostly sunny. Highs in the upper 50s.
Monday Night And Tuesday
Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.
Tuesday Night
Mostly cloudy with a 20 percent chance of rain. Lows around 50.
Wednesday
Sunny with a 20 percent chance of rain. Highs in the mid 60s.



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419 PM CST Wed Feb 11 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database