Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Thunderstorm in Vicinity

78°F

26°C

Humidity 82%
Wind Speed S 6 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 25 Jun 3:54 pm CDT
Extended Forecast for

5 Miles W Dow IL

Flood Watch June 25, 04:10pm until June 26, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 25, 04:10pm until June 26, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • This Afternoon

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 11pm.  Low around 67. Light and variable wind becoming southeast 5 to 7 mph after midnight.  Chance of precipitation is 90%.

    Low: 67 °F

    T-storms
    Likely then
    T-storms

  • Friday

    Friday: Showers and thunderstorms, mainly before 3pm.  High near 79. Southeast wind 8 to 10 mph becoming southwest in the afternoon.  Chance of precipitation is 90%.

    High: 79 °F

    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 65. West wind 5 to 8 mph becoming light and variable  in the evening.  Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Light north wind.
Tonight
Showers and thunderstorms, mainly after 11pm. Low around 67. Light and variable wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 90%.
Friday
Showers and thunderstorms, mainly before 3pm. High near 79. Southeast wind 8 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. West wind 5 to 8 mph becoming light and variable in the evening. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Light and variable wind.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Dow IL
 39.05°N 90.41°W (Elev. 600 ft)
3:02 pm CDT Jun 25, 2026
4pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database