Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
60°F
16°C
| Humidity | 53% |
| Wind Speed | S 7 mph |
| Barometer | 30.03 in (1016.8 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 29 Mar 11:54 pm CDT |
Extended Forecast for
3 Miles SSW Dow IL
Overnight
Low: 56 °F
Mostly Clear
Monday
High: 84 °F
Becoming
SunnyMonday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 84 °F
Breezy.
Chance Rain
then Chance
T-stormsTuesday Night
Low: 53 °F
Rain
Wednesday
High: 64 °F
Rain
Wednesday Night
Low: 50 °F
Rain
Thursday
High: 64 °F
Rain
Thursday Night
Low: 46 °F
Rain Likely
Detailed Forecast
Overnight
Mostly clear, with a low around 56. South wind 10 to 13 mph, with gusts as high as 21 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 84. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 24 mph.
Tuesday
A chance of rain, with thunderstorms also possible after 10am. Partly sunny, with a high near 84. Breezy, with a south wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 53. Southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 64. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Thursday
Rain. High near 64. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 72.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 55.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Breezy. Chance of precipitation is 70%.
Saturday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 61.
Additional Forecasts and Information
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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)
10:41 pm CDT Mar 29, 2026
12am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
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