Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
33°F
1°C
| Humidity | 52% |
| Wind Speed | N 5 mph |
| Barometer | 30.43 in (1031.0 mb) |
| Dewpoint | 17°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 28 Nov 12:54 pm CST |
Extended Forecast for
4 Miles S Portage Des Sioux MO
Winter Weather Advisory November 29, 12:00am until November 30, 12:00am
This Afternoon

High: 39 °F
Increasing
CloudsTonight
Low: 31 °F
Chance Snow
then SnowSaturday

High: 38 °F
Wintry Mix
Saturday Night
Low: 25 °F
Breezy.
Chance Rain
then CloudySunday

High: 30 °F
Mostly Cloudy
Sunday Night

Low: 16 °F
Mostly Cloudy
Monday
High: 27 °F
Mostly Cloudy
then Slight
Chance SnowMonday Night

Low: 18 °F
Chance Snow
Tuesday

High: 31 °F
Partly Sunny
Detailed Forecast
This Afternoon
Increasing clouds, with a high near 39. Calm wind becoming southeast around 5 mph.
Tonight
Snow, mainly after 11pm. Low around 31. Southeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday
Rain and snow, possibly mixed with sleet before 2pm, then rain, possibly mixed with snow between 2pm and 3pm, then rain after 3pm. High near 38. Southeast wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday Night
A 50 percent chance of rain before 9pm. Cloudy, with a low around 25. Breezy, with a south wind 14 to 20 mph becoming northwest after midnight. Winds could gust as high as 33 mph.
Sunday
Mostly cloudy, with a high near 30. Northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 27.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 32.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles S Portage Des Sioux MO
38.87°N 90.33°W (Elev. 456 ft)
38.87°N 90.33°W (Elev. 456 ft)
11:06 am CST Nov 28, 2025
1pm CST Nov 28, 2025-6pm CST Dec 4, 2025



