Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

63°F

17°C

Humidity 87%
Wind Speed E 7 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 3 Apr 8:54 am CDT
Extended Forecast for

3 Miles SSW Dow IL

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 80. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 30%.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight.  Low around 56. South wind around 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%.

    Low: 56 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm.  Mostly cloudy, with a temperature falling to around 55 by 1pm. West wind 11 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 80. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a temperature falling to around 55 by 1pm. West wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 58. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Dow IL
 39°N 90.33°W (Elev. 597 ft)
8:31 am CDT Apr 3, 2026
9am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
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