Current conditions at

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

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

Overcast

58°F

14°C

Humidity 70%
Wind Speed W 9 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 4 Nov 3:54 pm CST
Detailed forecast for

Calhoun County

This Afternoon
Cloudy and much cooler. Near steady temperature in the upper 50s. West winds 10 to 15 mph.
Tonight
Mostly cloudy in the evening, then becoming partly cloudy. Cooler with lows in the lower 40s. Southwest winds 5 to 10 mph.
Thursday
Sunny in the morning, then becoming partly sunny. Highs around 60. West winds 10 to 15 mph.
Thursday Night
Mostly cloudy. Isolated showers in the evening. Lows in the lower 40s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.
Friday
Mostly cloudy in the morning, then becoming mostly sunny. Highs in the lower 50s. North winds 5 to 10 mph.
Friday Night Through Saturday Night
Mostly clear. Lows around 30. Highs in the lower 50s.
Sunday
Sunny. Highs in the upper 50s.
Sunday Night Through Tuesday
Clear. Lows in the mid 30s. Highs in the mid 60s.



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209 PM CST Wed Nov 4 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database