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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
36°F
2°C
| Humidity | 48% |
| Wind Speed | W 12 mph |
| Barometer | 30.51 in (1033.4 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 11 Jan 1:54 pm CST |
Extended Forecast for
4 Miles E Portage Des Sioux MO
This Afternoon
High: 39 °F
Sunny
Tonight
Low: 26 °F
Clear
Monday
High: 51 °F
Sunny
Monday Night
Low: 36 °F
Partly Cloudy
Tuesday
High: 59 °F
Partly Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
then Slight
Chance RainWednesday
High: 43 °F
Mostly Cloudy
Wednesday Night
Low: 19 °F
Partly Cloudy
Thursday
High: 38 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 39. West wind 7 to 10 mph.
Tonight
Clear, with a low around 26. South wind 5 to 7 mph.
Monday
Sunny, with a high near 51. Southwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 36. Southwest wind 5 to 7 mph.
Tuesday
Partly sunny, with a high near 59. West wind 8 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 42.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly cloudy, with a high near 32.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles E Portage Des Sioux MO
38.93°N 90.27°W (Elev. 407 ft)
38.93°N 90.27°W (Elev. 407 ft)
11:06 am CST Jan 11, 2026
1pm CST Jan 11, 2026-6pm CST Jan 17, 2026
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