Hazardous Weather Conditions

Current conditions at

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

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

Fair

69°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 30.04 in (1017.0 mb)
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 15 Jun 6:54 am CDT
Detailed forecast for

Jersey County

Today
Patchy fog this morning. Partly sunny. Highs in the lower 80s. Northeast winds around 5 mph.
Tonight
Mostly cloudy. Lows in the upper 60s. Northeast winds around 5 mph.
Monday
Partly sunny in the morning, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 80s. East winds around 5 mph. Chance of rain 20 percent.
Monday Night
Partly cloudy. Lows in the upper 60s. South winds around 5 mph.
Tuesday
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
Tuesday Night
Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows in the lower 70s. Chance of rain 60 percent.
Wednesday
Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.
Wednesday Night
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. Chance of rain 50 percent.
Juneteenth And Thursday Night
Mostly clear. Highs in the lower 80s. Lows in the upper 60s.
Friday Through Saturday
Mostly clear. Highs around 90. Lows in the lower 70s. Heat index values up to 100.



Basemap Options
Click map to change the forecast location
Loading map...
524 AM CDT Sun Jun 15 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database