National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

72°F

22°C

Humidity 91%
Wind Speed N 8 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 14 Jun 1:54 am CDT
Extended Forecast for

2 Miles SSE Brussels IL

  • Overnight

    Overnight: Isolated showers. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Isolated showers before 9am, then isolated showers and thunderstorms after noon. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 82. North wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    Showers and
    Patchy Fog
    then Isolated
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. North wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Light northeast wind.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light and variable wind. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Isolated showers. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Saturday
Isolated showers before 9am, then isolated showers and thunderstorms after noon. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 82. North wind 6 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 66. North wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 85. Light northeast wind.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light and variable wind. Chance of precipitation is 20%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 74.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Juneteenth
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Brussels IL
 38.94°N 90.56°W (Elev. 486 ft)
Last Update:
1:52 am CDT Jun 14, 2025
Forecast Valid:
2am CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation