Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
49°F
9°C
| Humidity | 39% |
| Wind Speed | N 6 mph |
| Barometer | 30.02 in (1016.5 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 13 Mar 7:54 pm CDT |
Extended Forecast for
4 Miles E Portage Des Sioux MO
Tonight
Low: 36 °F
Partly Cloudy
Saturday
High: 63 °F
Mostly Sunny
Saturday Night
Low: 54 °F
Partly Cloudy
Sunday
High: 70 °F
Breezy.
Chance Rain
then ShowersSunday Night
Low: 21 °F
Rain/Snow and
BlusteryMonday
High: 28 °F
Chance Snow
and BlusteryMonday Night
Low: 12 °F
Partly Cloudy
and Blustery
then Mostly
ClearTuesday
High: 36 °F
Sunny
Tuesday Night
Low: 29 °F
Slight Chance
Snow then
Chance
Rain/Snow
Detailed Forecast
Tonight
Partly cloudy, with a low around 36. North wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 63. East wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 54. Southeast wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 70. Breezy, with a south wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Blustery, with a west wind 22 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Blustery.
Monday Night
Mostly clear, with a low around 12. Blustery.
Tuesday
Sunny, with a high near 36.
Tuesday Night
A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 69.
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)
8:31 pm CDT Mar 13, 2026
8pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
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