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

50°F

10°C

Humidity 61%
Wind Speed W 5 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 9 Jan 1:54 pm CST
Extended Forecast for

Fieldon IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. North wind 5 to 7 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 36. Calm wind becoming northwest 5 to 8 mph after midnight.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain before 9am, then a chance of sprinkles after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 45 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A chance of sprinkles and flurries before 10pm, then a chance of flurries between 10pm and 11pm. Partly cloudy, with a low around 24. Northwest wind 11 to 15 mph, with gusts as high as 31 mph.

    Low: 24 °F

    Chance
    Sprinkles/Flurries
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 36. Northwest wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. North wind 5 to 7 mph.
Tonight
A 50 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 36. Calm wind becoming northwest 5 to 8 mph after midnight.
Saturday
A chance of rain before 9am, then a chance of sprinkles after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday Night
A chance of sprinkles and flurries before 10pm, then a chance of flurries between 10pm and 11pm. Partly cloudy, with a low around 24. Northwest wind 11 to 15 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 36. Northwest wind 6 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 37.
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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:
1:16 pm CST Jan 9, 2026
Forecast Valid:
2pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation