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

25°F

-4°C

Humidity 88%
Wind Speed E 6 mph
Barometer 30.20 in (1023.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 8 Dec 7:54 pm CST
Extended Forecast for

2 Miles SSE Fieldon IL

  • Tonight

    Tonight: Clear during the early evening, then becoming mostly cloudy, with a temperature rising to around 34 by 4am. South wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 28 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. South wind around 10 mph, with gusts as high as 22 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 37 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 39 mph.

    High: 44 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Northwest wind 5 to 9 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow. Mostly cloudy, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear during the early evening, then becoming mostly cloudy, with a temperature rising to around 34 by 4am. South wind 7 to 9 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 49. South wind around 10 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 37 mph.
Wednesday
Mostly cloudy, with a high near 44. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 39 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 5 to 9 mph.
Thursday
A 20 percent chance of snow. Mostly cloudy, with a high near 36.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Friday
Mostly cloudy, with a high near 32.
Friday Night
Mostly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 21.
Saturday Night
Mostly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
A slight chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Fieldon IL
 39.09°N 90.5°W (Elev. 600 ft)
Last Update:
5:06 pm CST Dec 8, 2025
Forecast Valid:
8pm CST Dec 8, 2025-6pm CST Dec 15, 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