Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
71°F
22°C
| Humidity | 71% |
| Wind Speed | SE 14 mph |
| Barometer | 29.71 in (1005.9 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 9 Mar 6:54 pm CDT |
Extended Forecast for
2 Miles SSW Portage Des Sioux MO
Tonight
Low: 60 °F
Mostly Clear
Tuesday
High: 82 °F
Partly Sunny
Tuesday Night
Low: 54 °F
Slight Chance
T-storms then
RainWednesday
High: 63 °F⇓
Showers and
BreezyWednesday Night
Low: 32 °F
Mostly Cloudy
Thursday
High: 55 °F
Sunny
Thursday Night
Low: 44 °F
Mostly Cloudy
Friday
High: 63 °F
Mostly Cloudy
Friday Night
Low: 39 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 60. South wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 82. South wind 7 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3am. Low around 54. South wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm before 10am, then showers, mainly between 10am and 1pm. Temperature rising to near 63 by 10am, then falling to around 49 during the remainder of the day. Breezy, with a southwest wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 32. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 63.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 65. Breezy.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Portage Des Sioux MO
38.89°N 90.36°W (Elev. 427 ft)
38.89°N 90.36°W (Elev. 427 ft)
7:21 pm CDT Mar 9, 2026
7pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
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