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

53°F

12°C

Humidity 35%
Wind Speed W 5 mph
Barometer 30.15 in (1021.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Jan 4:54 pm CST
Extended Forecast for

Eolia MO

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 37. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.

    Low: 37 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 57. West wind 10 to 14 mph, with gusts as high as 28 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 33. West wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 38 by 11am, then falling to around 30 during the remainder of the day. North wind 15 to 17 mph, with gusts as high as 36 mph.

    High: 38 °F⇓

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. North wind 8 to 13 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 31.

    High: 31 °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 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 37. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.
Tuesday
Increasing clouds, with a high near 57. West wind 10 to 14 mph, with gusts as high as 28 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 33. West wind 10 to 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 38 by 11am, then falling to around 30 during the remainder of the day. North wind 15 to 17 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 16. North wind 8 to 13 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 31.
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 16.
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 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Eolia MO
 39.26°N 91°W (Elev. 784 ft)
Last Update:
4:46 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
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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