Current conditions at

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

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

Light Rain

69°F

21°C

Humidity 93%
Wind Speed E 6 mph
Barometer 30.05 in (1017.2 mb)
Dewpoint 67°F (19°C)
Visibility 9.00 mi
Last update 24 Jul 11:54 pm CDT
Detailed forecast for

Lincoln County

Rest Of Tonight
Cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the upper 60s. South winds around 5 mph. Chance of rain 50 percent.
Saturday
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Warmer with highs in the upper 80s. Southwest winds around 5 mph, becoming west around 5 mph in the afternoon. Chance of rain 40 percent.
Saturday Night
Partly cloudy. Humid with lows around 70. Light and variable winds.
Sunday
Mostly sunny. Humid with highs in the lower 90s. Light and variable winds, becoming southwest around 5 mph in the afternoon. Heat index values up to 107.
Sunday Night
Mostly clear. Humid with lows in the mid 70s. Light and variable winds, becoming south around 5 mph after midnight. Heat index values up to 107 early in the evening.
Monday Through Tuesday
Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110.
Tuesday Night Through Thursday
Partly cloudy. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105.
Thursday Night And Friday
Partly cloudy. A slight chance of showers and thunderstorms. Lows around 70. Highs around 90. Chance of rain 20 percent.



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1212 AM CDT Sat Jul 25 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database