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.

Overcast

40°F

4°C

Humidity 73%
Wind Speed NW 15 G 31 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 9 Nov 4:54 am CST
Extended Forecast for

4 Miles NE Saint Charles MO

  • Overnight

    Overnight: A chance of sprinkles and flurries. Cloudy, with a steady temperature around 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 31 mph.

    Low: 40 °F

    Chance
    Sprinkles/Flurries
    and Breezy

  • Sunday

    Sunday: A chance of flurries. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.

    High: 39 °F⇓

    Chance
    Flurries and
    Breezy

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Partly cloudy, with a low around 24. Northwest wind around 15 mph, with gusts as high as 26 mph.

    Low: 24 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 40. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. West wind 5 to 7 mph becoming south after midnight.

    Low: 25 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of sprinkles and flurries. Cloudy, with a steady temperature around 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 31 mph.
Sunday
A chance of flurries. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Sunday Night
A chance of flurries before 9pm. Partly cloudy, with a low around 24. Northwest wind around 15 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 40. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 25. West wind 5 to 7 mph becoming south after midnight.
Veterans Day
Partly sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Saint Charles MO
 38.83°N 90.48°W (Elev. 443 ft)
Last Update:
5:16 am CST Nov 9, 2025
Forecast Valid:
5am CST Nov 9, 2025-6pm CST Nov 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation