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.

Fair

71°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 29.99 in (1015.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 14 Sep 7:54 am CDT
Extended Forecast for

4 Miles NNE Fieldon IL

  • Today

    Today: Mostly sunny and hot, with a high near 97. Light and variable wind.

    High: 97 °F

    Hot

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 69. Light and variable wind.

    Low: 69 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. East wind 3 to 6 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny and hot, with a high near 97. Light and variable wind.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 69. Light and variable wind.
Monday
Mostly sunny, with a high near 92. East wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Fieldon IL
 39.16°N 90.46°W (Elev. 600 ft)
Last Update:
6:06 am CDT Sep 14, 2025
Forecast Valid:
8am CDT Sep 14, 2025-6pm CDT Sep 20, 2025
 
Forecast Discussion
 
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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