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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

78°F

26°C

Humidity 67%
Wind Speed S 12 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Apr 11:54 am CDT
Extended Forecast for

Fieldon IL

  • This Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 52. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Chance
    T-storms then
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 53 by 9am. West wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 57 °F⇓

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. West wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 52. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 53 by 9am. West wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 38. West wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 57. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fieldon IL
 39.11°N 90.49°W (Elev. 640 ft)
Last Update:
11:51 am CDT Apr 3, 2026
Forecast Valid:
12pm CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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