Current conditions at

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

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

NA

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint NA
Visibility NA
Last update *** Not a current observation ***
Detailed forecast for

Jersey County

Today
Mostly cloudy. Highs in the mid 30s. Northeast winds 5 to 10 mph.
Tonight
Mostly cloudy. Lows in the mid 20s. Northeast winds around 5 mph.
Saturday
Partly sunny in the morning, then clearing. Highs in the upper 30s. North winds around 5 mph.
Saturday Night
Mostly clear. Lows in the lower 20s. Northwest winds around 5 mph in the evening, becoming light and variable.
Sunday
Mostly sunny in the morning, then becoming mostly cloudy. Highs in the upper 30s. East winds around 5 mph, becoming southeast in the afternoon.
Sunday Night
Partly cloudy in the evening, then clearing. Lows around 30.
Monday
Sunny. Not as cool with highs in the mid 50s.
Monday Night And Tuesday
Partly cloudy. Lows in the upper 30s. Highs in the upper 50s.
Tuesday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s.
Wednesday
Mostly sunny. Highs in the mid 50s.
Wednesday Night
Partly cloudy in the evening, then mostly cloudy with a slight chance of rain after midnight. Lows in the lower 40s. Chance of rain 20 percent.
Thursday
Mostly cloudy with a 40 percent chance of rain. Highs in the upper 50s.



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409 AM CST Fri Jan 2 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database