Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fog/Mist
39°F
4°C
| Humidity | 93% |
| Wind Speed | E 10 mph |
| Barometer | 30.22 in (1023.6 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 5.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 2 Mar 12:54 pm CST |
Extended Forecast for
4 Miles E Portage Des Sioux MO
This Afternoon

High: 43 °F
Slight Chance
RainTonight
Low: 39 °F
Cloudy then
RainTuesday

High: 58 °F
Rain
Tuesday Night

Low: 49 °F
Rain and
Patchy FogWednesday

High: 65 °F
Rain
Wednesday Night

Low: 54 °F
Rain
Thursday
High: 70 °F
Rain Likely
then Chance
RainThursday Night

Low: 54 °F
Chance Rain
Friday
High: 79 °F
Chance
T-storms then
Chance Rain
Detailed Forecast
This Afternoon
A 20 percent chance of rain before 5pm. Cloudy, with a high near 43. East wind 6 to 9 mph.
Tonight
A slight chance of rain before 3am, then a chance of rain and thunderstorms between 3am and 4am, then rain and possibly a thunderstorm after 4am. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 90%.
Tuesday
Rain and thunderstorms before 3pm, then rain and possibly a thunderstorm, mainly after 3pm. High near 58. Southeast wind around 6 mph. Chance of precipitation is 100%.
Tuesday Night
Rain and possibly a thunderstorm. Patchy fog between 11pm and midnight. Low around 49. Northeast wind 3 to 6 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 65. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
Rain and possibly a thunderstorm before midnight, then rain between midnight and 3am, then rain and possibly a thunderstorm after 3am. Low around 54. Chance of precipitation is 90%.
Thursday
Rain likely and possibly a thunderstorm before 9am, then rain likely between 9am and noon, then a chance of rain and thunderstorms after noon. Partly sunny, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 80%.
Saturday
Rain and thunderstorms likely. Cloudy, with a high near 69. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 47.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 65.
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)
12:26 pm CST Mar 2, 2026
1pm CST Mar 2, 2026-6pm CDT Mar 8, 2026



