Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
A Few Clouds
63°F
17°C
| Humidity | 87% |
| Wind Speed | E 7 mph |
| Barometer | 29.98 in (1015.0 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 3 Apr 8:54 am CDT |
Extended Forecast for
3 Miles SSW Dow IL
Today

High: 80 °F
Chance
T-stormsTonight
Low: 56 °F
Chance
T-storms then
ShowersSaturday
High: 59 °F⇓
Showers
Likely then
Chance
ShowersSaturday Night

Low: 38 °F
Partly Cloudy
Sunday

High: 58 °F
Sunny
Sunday Night

Low: 39 °F
Clear
Monday

High: 59 °F
Sunny
Monday Night

Low: 33 °F
Partly Cloudy
Tuesday

High: 53 °F
Mostly Sunny
Detailed Forecast
Today
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 80. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a temperature falling to around 55 by 1pm. West wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 58. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Dow IL
39°N 90.33°W (Elev. 597 ft)
39°N 90.33°W (Elev. 597 ft)
8:31 am CDT Apr 3, 2026
9am CDT Apr 3, 2026-6pm CDT Apr 9, 2026



