Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
81°F
27°C
| Humidity | 28% |
| Wind Speed | W 3 mph |
| Barometer | 30.09 in (1018.7 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 9.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 8 Oct 12:54 pm CDT |
Extended Forecast for
Portage Des Sioux MO
This Afternoon
High: 86 °F
Sunny
Tonight
Low: 54 °F
Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 61 °F
Clear
Saturday
High: 86 °F
Mostly Sunny
Saturday Night
Low: 59 °F
Mostly Cloudy
then Slight
Chance RainSunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 59 °F
Mostly Clear
Columbus Day
High: 93 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 86. Southeast wind around 5 mph becoming calm.
Tonight
Clear, with a low around 54. Light east wind.
Friday
Sunny, with a high near 90. Southeast wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Clear, with a low around 61. Southeast wind 5 to 9 mph.
Saturday
Mostly sunny, with a high near 86. Southeast wind 5 to 11 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 59.
Columbus Day
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 66.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 59.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Portage Des Sioux MO
38.93°N 90.36°W (Elev. 407 ft)
38.93°N 90.36°W (Elev. 407 ft)
1:01 pm CDT Oct 8, 2026
1pm CDT Oct 8, 2026-6pm CDT Oct 14, 2026
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