National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

36°F

2°C

Humidity 52%
Wind Speed SE 3 mph
Barometer 29.90 in (1013.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 5 Dec 2:54 pm CST
Extended Forecast for

3 Miles SW Godfrey IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. South wind 6 to 8 mph becoming west after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37. West wind around 6 mph becoming light and variable.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 29. East wind 6 to 8 mph.

    Low: 29 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a slight chance of snow after noon. Mostly cloudy, with a high near 37. South wind 6 to 11 mph becoming north in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. North wind 6 to 11 mph.

    Low: 16 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. South wind 6 to 8 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 37. West wind around 6 mph becoming light and variable.
Saturday Night
A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 29. East wind 6 to 8 mph.
Sunday
A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a slight chance of snow after noon. Mostly cloudy, with a high near 37. South wind 6 to 11 mph becoming north in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. North wind 6 to 11 mph.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Partly sunny, with a high near 30.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Godfrey IL
 38.93°N 90.22°W (Elev. 597 ft)
Last Update:
3:16 pm CST Dec 5, 2025
Forecast Valid:
3pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation