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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane today as it moves north toward the Big Island of Hawaii. Heavy rainfall may produce life-threatening, catastrophic flooding and mudslides. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

62°F

17°C

Humidity 78%
Wind Speed NE 6 mph
Barometer 30.27 in (1024.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 Sep 6:54 am CDT
Extended Forecast for

Brussels IL

  • Today

    Today: Cloudy, with a high near 72. Northeast wind around 6 mph.

    High: 72 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Light northeast wind.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.

    High: 78 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. East wind 3 to 5 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers. Cloudy, with a high near 71. Southeast wind 3 to 5 mph.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Cloudy then
    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 72. Northeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 61. Light northeast wind.
Friday
Mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 61. East wind 3 to 5 mph.
Saturday
A 50 percent chance of showers. Cloudy, with a high near 71. Southeast wind 3 to 5 mph.
Saturday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 75.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brussels IL
 38.94°N 90.59°W (Elev. 505 ft)
Last Update:
4:56 am CDT Sep 24, 2026
Forecast Valid:
7am CDT Sep 24, 2026-6pm CDT Sep 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation