Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

34°F

1°C

Humidity 64%
Wind Speed E 8 mph
Barometer 30.33 in (1027.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 28 Nov 8:54 pm CST
Extended Forecast for

4 Miles W Old Monroe MO

Winter Weather Advisory November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Snow, mainly after 1am.  Low around 31. Southeast wind 7 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Rain, snow, and sleet before 1pm, then rain, possibly mixed with snow between 1pm and 2pm, then rain after 2pm.  High near 39. Southeast wind 13 to 16 mph becoming south in the afternoon. Winds could gust as high as 33 mph.  Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    High: 39 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 9pm.  Cloudy, with a low around 22. Breezy, with a southwest wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 33 mph.

    Low: 22 °F

    Breezy.
    Chance Rain
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Northwest wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of snow after noon.  Cloudy, with a high near 28.

    High: 28 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight.  Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 1am. Low around 31. Southeast wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
Saturday
Rain, snow, and sleet before 1pm, then rain, possibly mixed with snow between 1pm and 2pm, then rain after 2pm. High near 39. Southeast wind 13 to 16 mph becoming south in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday Night
A 30 percent chance of rain before 9pm. Cloudy, with a low around 22. Breezy, with a southwest wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 33 mph.
Sunday
Mostly cloudy, with a high near 29. Northwest wind 8 to 14 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 17. Northwest wind around 6 mph becoming calm in the evening.
Monday
A 40 percent chance of snow after noon. Cloudy, with a high near 28.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Partly sunny, with a high near 29.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 38.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Old Monroe MO
 38.94°N 90.82°W (Elev. 525 ft)
9:21 pm CST Nov 28, 2025
9pm CST Nov 28, 2025-6pm CST Dec 5, 2025
 
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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