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.

Overcast

88°F

31°C

Humidity 52%
Wind Speed SW 6 mph
Barometer 29.81 in (1008.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Jun 2:54 pm CDT
Extended Forecast for

5 Miles SSW Fieldon IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Southwest wind 3 to 5 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 73. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 83. Southwest wind 8 to 11 mph, with gusts as high as 25 mph.

    High: 83 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 67 °F

    Chance
    T-storms then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Northwest wind 3 to 5 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Southwest wind 3 to 5 mph.
Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 73. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 83. Southwest wind 8 to 11 mph, with gusts as high as 25 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable after midnight.
Juneteenth
Sunny, with a high near 84. Northwest wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Fieldon IL
 39.05°N 90.55°W (Elev. 502 ft)
Last Update:
2:52 pm CDT Jun 17, 2025
Forecast Valid:
3pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation