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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

62°F

17°C

Humidity 86%
Wind Speed W 3 mph
Barometer 30.24 in (1023.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 24 Sep 10:54 pm CDT
Extended Forecast for

2 Miles SW Brussels IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 73. Calm wind becoming east around 6 mph in the morning.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Northeast wind 3 to 6 mph.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly between 9am and 1pm. Mostly cloudy, with a high near 71. East wind 3 to 5 mph.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light east wind.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.

    High: 74 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. Calm wind.
Friday
Partly sunny, with a high near 73. Calm wind becoming east around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 62. Northeast wind 3 to 6 mph.
Saturday
A 30 percent chance of showers, mainly between 9am and 1pm. Mostly cloudy, with a high near 71. East wind 3 to 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light east wind.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 79.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Brussels IL
 38.92°N 90.62°W (Elev. 502 ft)
Last Update:
9:06 pm CDT Sep 24, 2026
Forecast Valid:
11pm CDT Sep 24, 2026-6pm CDT Oct 1, 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