Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
71°F
22°C
| Humidity | 66% |
| Wind Speed | S 16 G 26 mph |
| Barometer | 29.90 in (1012.2 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 10:54 am CDT |
Extended Forecast for
3 Miles SSW Dow IL
Today
High: 81 °F
Showers
Tonight
Low: 62 °F
Showers
Thursday
High: 81 °F
Chance
ShowersThursday Night
Low: 58 °F
Mostly Clear
Friday
High: 86 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 51 °F
Showers
Saturday
High: 65 °F
Chance
ShowersSaturday Night
Low: 39 °F
Slight Chance
ShowersSunday
High: 62 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 81. Southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers after 4am. Low around 62. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. West wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 58. West wind around 6 mph becoming south after midnight.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 7 to 15 mph, with gusts as high as 24 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
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)
10:46 am CDT Apr 15, 2026
11am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
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