Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

61°F

16°C

Humidity 35%
Wind Speed W 15 mph
Barometer 30.28 in (1025.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 6 Apr 2:54 pm CDT
Extended Forecast for

3 Miles SSW Dow IL

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 4am.  Increasing clouds, with a low around 36. North wind 8 to 11 mph.

    Low: 36 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of rain and snow showers before 8am, then a chance of rain showers between 8am and 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 52. East wind around 11 mph.  Chance of precipitation is 30%.

    High: 52 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. East wind around 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. South wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. South wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 36. North wind 8 to 11 mph.
Tuesday
A chance of rain and snow showers before 8am, then a chance of rain showers between 8am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 52. East wind around 11 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 39. East wind around 10 mph.
Wednesday
Mostly sunny, with a high near 72. South wind 11 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 52. South wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 78.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Dow IL
 39°N 90.33°W (Elev. 597 ft)
1:26 pm CDT Apr 6, 2026
3pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database