Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair and Breezy
79°F
26°C
| Humidity | 42% |
| Wind Speed | S 23 G 35 mph |
| Barometer | 30.00 in (1015.5 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 12 Apr 11:54 am CDT |
Extended Forecast for
3 Miles SSW Dow IL
This Afternoon

High: 80 °F
Chance
Showers and
BreezyTonight
Low: 66 °F
Chance
T-storms then
Slight Chance
T-stormsMonday

High: 85 °F
Partly Sunny
Monday Night

Low: 67 °F
Slight Chance
T-stormsTuesday

High: 87 °F
Chance
T-stormsTuesday Night

Low: 67 °F
Chance
T-stormsWednesday

High: 80 °F
Showers
Wednesday Night

Low: 63 °F
Showers
LikelyThursday

High: 82 °F
Chance
Showers
Detailed Forecast
This Afternoon
A chance of showers and thunderstorms. Increasing clouds, with a high near 80. Breezy, with a south wind around 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 66. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Monday
Partly sunny, with a high near 85. South wind 10 to 17 mph, with gusts as high as 26 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. South wind 13 to 16 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 87. Southwest wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 60.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
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)
12:11 pm CDT Apr 12, 2026
12pm CDT Apr 12, 2026-6pm CDT Apr 18, 2026



