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

37°F

3°C

Humidity 93%
Wind Speed N 3 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 10 Jan 12:54 am CST
Extended Forecast for

4 Miles NE Saint Charles MO

  • Overnight

    Overnight: A 40 percent chance of rain after 4am. Mostly cloudy, with a low around 37. Calm wind becoming northwest around 5 mph.

    Low: 37 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 47 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. West wind 9 to 15 mph, with gusts as high as 28 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 39. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Southwest wind 3 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Monday Night

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

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain after 4am. Mostly cloudy, with a low around 37. Calm wind becoming northwest around 5 mph.
Saturday
A 50 percent chance of rain, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 7 to 16 mph, with gusts as high as 26 mph.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. West wind 9 to 15 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 39. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 27. Southwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 45.
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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:
1:06 am CST Jan 10, 2026
Forecast Valid:
1am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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