Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
69°F
21°C
| Humidity | 78% |
| Wind Speed | E 7 mph |
| Barometer | 30.04 in (1016.9 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 13 Sep 12:54 am CDT |
Extended Forecast for
3 Miles SSW Dow IL
Overnight
Low: 69 °F
Partly Cloudy
Saturday
High: 96 °F
Mostly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 69 °F
Mostly Clear
Sunday
High: 96 °F
Mostly Sunny
then Slight
Chance
T-stormsSunday Night
Low: 69 °F
Partly Cloudy
Monday
High: 94 °F
Partly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 68 °F
Partly Cloudy
Tuesday
High: 95 °F
Sunny then
Slight Chance
T-stormsTuesday Night
Low: 67 °F
Partly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 69. Southeast wind around 7 mph.
Saturday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 96. Southeast wind around 6 mph becoming west in the afternoon. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 69. South wind 3 to 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 69. Light east wind.
Monday
A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 94. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 89.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT 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)
10:26 pm CDT Sep 12, 2025
1am CDT Sep 13, 2025-6pm CDT Sep 19, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
