Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
48°F
9°C
| Humidity | 42% |
| Wind Speed | N 7 mph |
| Barometer | 30.04 in (1017.2 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 13 Mar 8:54 pm CDT |
Extended Forecast for
3 Miles SSW Dow IL
Tonight
Low: 35 °F
Partly Cloudy
Saturday
High: 62 °F
Mostly Sunny
Saturday Night
Low: 53 °F
Partly Cloudy
Sunday
High: 68 °F
Breezy.
Chance Rain
then ShowersSunday Night
Low: 21 °F
Rain/Snow and
BlusteryMonday
High: 27 °F
Chance Snow
and BlusteryMonday Night
Low: 12 °F
Partly Cloudy
and Blustery
then Mostly
ClearTuesday
High: 35 °F
Sunny
Tuesday Night
Low: 28 °F
Slight Chance
Snow then
Chance
Rain/Snow
Detailed Forecast
Tonight
Partly cloudy, with a low around 35. North wind around 6 mph becoming east after midnight.
Saturday
Mostly sunny, with a high near 62. Southeast wind 8 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 53. Southeast wind 13 to 16 mph, with gusts as high as 24 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 68. Breezy, with a south wind 18 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Blustery, with a west wind 22 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 27. Blustery.
Monday Night
Mostly clear, with a low around 12. Blustery.
Tuesday
Sunny, with a high near 35.
Tuesday Night
A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 67.
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)
8:31 pm CDT Mar 13, 2026
9pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
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