Hazardous Weather Conditions
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 | 89% |
| Wind Speed | NW 5 mph |
| Barometer | 30.17 in (1022.1 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 3 Dec 6:54 pm CST |
Extended Forecast for
2 Miles ENE Portage Des Sioux MO
Tonight
Low: 10 °F
Chance Snow
then Slight
Chance SnowThursday

High: 21 °F
Decreasing
CloudsThursday Night

Low: 12 °F
Partly Cloudy
Friday

High: 37 °F
Mostly Sunny
Friday Night

Low: 23 °F
Mostly Cloudy
Saturday

High: 38 °F
Partly Sunny
Saturday Night
Low: 24 °F
Mostly Cloudy
then Slight
Chance
Freezing RainSunday
High: 32 °F
Slight Chance
Snow then
Mostly CloudySunday Night

Low: 14 °F
Mostly Cloudy
Detailed Forecast
Tonight
A chance of snow before 2am, then a chance of flurries between 2am and 4am. Cloudy, with a low around 10. North wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 21. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 12. Light and variable wind becoming south around 5 mph after midnight.
Friday
Mostly sunny, with a high near 37. South wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 23. South wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.
Sunday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 48.
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)
7:21 pm CST Dec 3, 2025
7pm CST Dec 3, 2025-6pm CST Dec 10, 2025



