Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
20°F
-7°C
| Humidity | 57% |
| Wind Speed | N 8 mph |
| Barometer | 30.33 in (1027.5 mb) |
| Dewpoint | 7°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | 10°F (-12°C) |
| Last update | 4 Dec 3:54 pm CST |
Extended Forecast for
2 Miles ENE Portage Des Sioux MO
Tonight

Low: 6 °F
Mostly Clear
Friday

High: 37 °F
Sunny
Friday Night

Low: 25 °F
Mostly Cloudy
Saturday

High: 35 °F
Partly Sunny
Saturday Night
Low: 27 °F
Mostly Cloudy
then Chance
SnowSunday
High: 34 °F
Chance
Rain/Snow
then Slight
Chance SnowSunday Night

Low: 13 °F
Mostly Cloudy
Monday

High: 30 °F
Mostly Sunny
Monday Night

Low: 23 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 6. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 37. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly cloudy, with a low around 25. South wind around 6 mph becoming light and variable after midnight.
Saturday
Partly sunny, with a high near 35. Light and variable wind becoming east around 6 mph in the afternoon.
Saturday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 27. East wind around 6 mph.
Sunday
A chance of rain and snow before noon, then a slight chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 34.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Portage Des Sioux MO
38.93°N 90.3°W (Elev. 407 ft)
38.93°N 90.3°W (Elev. 407 ft)
3:16 pm CST Dec 4, 2025
4pm CST Dec 4, 2025-6pm CST Dec 11, 2025


