Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
32°F
0°C
| Humidity | 69% |
| Wind Speed | NE 13 G 23 mph |
| Barometer | 30.40 in (1029.6 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 1 Mar 8:54 am CST |
Extended Forecast for
4 Miles E Portage Des Sioux MO
Winter Weather Advisory March 1, 06:00pm until March 2, 06:00am
Today
High: 48 °F
Mostly Cloudy
Tonight
Low: 33 °F
Rain/Snow
Monday
High: 47 °F
Chance Rain
Monday Night
Low: 41 °F
Showers
Tuesday
High: 63 °F
Showers
Tuesday Night
Low: 54 °F
Showers
Wednesday
High: 68 °F
Showers
Wednesday Night
Low: 50 °F
Showers
LikelyThursday
High: 69 °F
Showers
Likely
Detailed Forecast
Today
Mostly cloudy, with a high near 48. Northeast wind 11 to 15 mph, with gusts as high as 22 mph.
Tonight
Rain and snow, becoming all rain after 3am. Low around 33. East wind 9 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 47. East wind 7 to 10 mph. Chance of precipitation is 40%.
Monday Night
Showers. Low around 41. East wind around 6 mph. Chance of precipitation is 80%.
Tuesday
Showers. High near 63. South wind 6 to 10 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 64. Chance of precipitation is 60%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
8:26 am CST Mar 1, 2026
9am CST Mar 1, 2026-6pm CST Mar 7, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
