Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
36°F
2°C
| Humidity | 86% |
| Wind Speed | SE 7 mph |
| Barometer | 29.91 in (1012.9 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 6 Dec 10:54 pm CST |
Extended Forecast for
2 Miles ENE Portage Des Sioux MO
Tonight

Low: 34 °F
Slight Chance
RainSunday
High: 37 °F
Slight Chance
Drizzle then
CloudySunday Night

Low: 17 °F
Mostly Cloudy
Monday

High: 32 °F
Decreasing
CloudsMonday Night

Low: 23 °F
Partly Cloudy
Tuesday

High: 50 °F
Partly Sunny
Tuesday Night

Low: 38 °F
Mostly Cloudy
Wednesday

High: 46 °F
Partly Sunny
Wednesday Night
Low: 26 °F
Mostly Cloudy
then Slight
Chance Snow
Detailed Forecast
Tonight
A 20 percent chance of rain before 3am. Cloudy, with a low around 34. Southeast wind 5 to 7 mph.
Sunday
A slight chance of drizzle before noon. Cloudy, with a high near 37. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 17. North wind 6 to 11 mph, with gusts as high as 21 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 5 mph becoming calm.
Monday Night
Partly cloudy, with a low around 23. South wind 5 to 9 mph.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Mostly sunny, with a high near 22.
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)
9:46 pm CST Dec 6, 2025
11pm CST Dec 6, 2025-6pm CST Dec 13, 2025


