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 | E 8 mph |
| Barometer | 30.30 in (1026.3 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 2 Mar 1:54 am CST |
Extended Forecast for
4 Miles E Portage Des Sioux MO
Overnight

Low: 33 °F
Rain/Snow
LikelyMonday

High: 43 °F
Chance
DrizzleMonday Night
Low: 39 °F
Cloudy then
RainTuesday

High: 61 °F
Rain
Tuesday Night

Low: 51 °F
Rain
Wednesday

High: 66 °F
Rain
Wednesday Night

Low: 53 °F
Rain
Thursday
High: 69 °F
Rain Likely
then Chance
RainThursday Night
Low: 55 °F
Chance Rain
then Chance
T-storms
Detailed Forecast
Overnight
Rain and snow likely, becoming all rain after 3am. Cloudy, with a low around 33. East wind around 10 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of drizzle, mainly before 2pm. Cloudy, with a high near 43. East wind 8 to 10 mph.
Monday Night
Rain, mainly after 2am. Low around 39. East wind 5 to 7 mph. Chance of precipitation is 90%.
Tuesday
Rain, with thunderstorms also possible after noon. High near 61. Southeast wind 5 to 7 mph. Chance of precipitation is 90%.
Tuesday Night
Rain, with thunderstorms also possible after 9pm. Low around 51. East wind around 6 mph becoming south after midnight. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 66. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 80%.
Thursday
Rain likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Friday
Rain likely and possibly a thunderstorm before noon, then a chance of rain. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
A 50 percent chance of rain. Cloudy, with a high near 67.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 44.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 66.
Additional Forecasts and Information
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ABOUT 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)
12:56 am CST Mar 2, 2026
2am CST Mar 2, 2026-6pm CDT Mar 8, 2026



