Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fog
48°F
9°C
| Humidity | 96% |
| Wind Speed | NE 6 mph |
| Barometer | 30.05 in (1017.6 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 0.25 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 4 Mar 10:54 am CST |
Extended Forecast for
4 Miles E Portage Des Sioux MO
Today
High: 59 °F
T-storms and
Patchy FogTonight
Low: 52 °F
T-storms and
Patchy FogThursday
High: 67 °F
Scattered
Showers and
Patchy Fog
then Partly
SunnyThursday Night
Low: 55 °F
Scattered
Showers then
Showers
LikelyFriday
High: 79 °F
Chance
ShowersFriday Night
Low: 53 °F
Showers
Likely then
ShowersSaturday
High: 64 °F
Chance
Showers then
Mostly SunnySaturday Night
Low: 40 °F
Partly Cloudy
Sunday
High: 67 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms, mainly before 4pm. Patchy fog before noon. High near 59. East wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 10pm. Low around 52. Light and variable wind. Chance of precipitation is 80%.
Thursday
Scattered showers, mainly before 8am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 67. West wind 3 to 8 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Calm wind becoming south 5 to 8 mph after midnight. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 79. South wind 9 to 18 mph, with gusts as high as 28 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers before noon. Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 78.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 60.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
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)
10:26 am CST Mar 4, 2026
11am CST Mar 4, 2026-6pm CDT Mar 10, 2026
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