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.

Fog/Mist

53°F

12°C

Humidity 89%
Wind Speed E 8 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Wind Chill50°F (10°C)
Last update 20 Nov 2:54 pm CST
Extended Forecast for

4 Miles NNE Saint Charles MO

  • Tonight

    Tonight: A chance of rain, then rain and possibly a thunderstorm after midnight. Patchy fog after 1am. Low around 52. East wind 3 to 6 mph. Chance of precipitation is 100%.

    Low: 52 °F

    Chance Rain
    then Rain and
    Patchy Fog

  • Friday

    Friday: Rain. Patchy fog between 8am and 10am. High near 57. Northeast wind 5 to 9 mph. Chance of precipitation is 100%.

    High: 57 °F

    Rain and
    Patchy Fog
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain, mainly before midnight. Low around 43. North wind 6 to 10 mph. Chance of precipitation is 90%.

    Low: 43 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 57. North wind around 6 mph becoming light and variable in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Chance Rain
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely
    then Chance
    Rain

Detailed Forecast

Tonight
A chance of rain, then rain and possibly a thunderstorm after midnight. Patchy fog after 1am. Low around 52. East wind 3 to 6 mph. Chance of precipitation is 100%.
Friday
Rain. Patchy fog between 8am and 10am. High near 57. Northeast wind 5 to 9 mph. Chance of precipitation is 100%.
Friday Night
Rain, mainly before midnight. Low around 43. North wind 6 to 10 mph. Chance of precipitation is 90%.
Saturday
Sunny, with a high near 57. North wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 63.
Sunday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44.
Monday
Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 70%.
Monday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 30.
Thanksgiving Day
Mostly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Saint Charles MO
 38.85°N 90.51°W (Elev. 436 ft)
Last Update:
3:16 pm CST Nov 20, 2025
Forecast Valid:
3pm CST Nov 20, 2025-6pm CST Nov 27, 2025
 
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