Current conditions at

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

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

Fair

60°F

16°C

Humidity 44%
Wind Speed Calm
Barometer 30.26 in (1024.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 3 Nov 4:54 pm CST
Detailed forecast for

Jersey County

Tonight
Mostly clear this evening, then becoming partly cloudy. Lows in the upper 30s. Northeast winds around 5 mph, becoming southeast around 5 mph after midnight.
Tuesday
Sunny. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph.
Tuesday Night
Partly cloudy in the evening, then clearing. Not as cool with lows in the lower 50s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.
Wednesday
Sunny. Highs in the upper 60s. West winds 10 to 15 mph, becoming northwest in the afternoon.
Wednesday Night
Clear, cooler with lows in the upper 30s. North winds around 5 mph, becoming east after midnight.
Thursday
Sunny. Highs in the mid 60s.
Thursday Night
Mostly cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Not as cool with lows in the lower 50s. Chance of rain 50 percent.
Friday
Mostly sunny. A slight chance of rain in the morning. Highs in the upper 60s. Chance of rain 20 percent.
Friday Night And Saturday
Partly cloudy. Lows in the upper 30s. Highs in the lower 60s.
Saturday Night
Partly cloudy. A slight chance of rain in the evening. Lows in the upper 30s. Chance of rain 20 percent.
Sunday
Mostly sunny. Cooler with highs around 50.
Sunday Night And Monday
Mostly clear. Lows in the upper 20s. Highs in the upper 40s.



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317 PM CST Mon Nov 3 2025
 
 

Additional Resources

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National Digital Forecast Database