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

56°F

13°C

Humidity 30%
Wind Speed SW 8 mph
Barometer 30.15 in (1021.3 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 12 Jan 3:54 pm CST
Extended Forecast for

Kampsville IL

  • Tonight

    Tonight: Mostly clear, with a low around 35. Southwest wind 3 to 8 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 57. West wind 7 to 10 mph, with gusts as high as 25 mph.

    High: 57 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 34. West wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a temperature rising to near 38 by noon, then falling to around 31 during the remainder of the day. Northwest wind 13 to 17 mph, with gusts as high as 34 mph.

    High: 38 °F⇓

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. North wind 7 to 13 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • 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: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Southwest wind 3 to 8 mph.
Tuesday
Increasing clouds, with a high near 57. West wind 7 to 10 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 34. West wind 6 to 9 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a temperature rising to near 38 by noon, then falling to around 31 during the remainder of the day. Northwest wind 13 to 17 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 17. North wind 7 to 13 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kampsville IL
 39.29°N 90.63°W (Elev. 499 ft)
Last Update:
3:16 pm CST Jan 12, 2026
Forecast Valid:
4pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
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