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.

Fair

18°C

64°F

Humidity 54%
Wind Speed S 20 km/h
Barometer 1000.8 mb (29.57 in)
Dewpoint 8°C (47°F)
Visibility 16 km
Last update 19 Mar 1:54 am CDT
Extended Forecast for

2 Miles SW Brussels IL

Wind Advisory March 19, 09:00am until March 19, 07:00pm
Red Flag Warning March 19, 01:00pm until March 19, 08:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 14. South wind 13 to 23 km/h, with gusts as high as 47 km/h.

    Low: 14 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain between noon and 1pm. Mostly sunny, with a high near 23. Windy, with a south wind 26 to 36 km/h increasing to 38 to 48 km/h in the afternoon. Winds could gust as high as 80 km/h. Chance of precipitation is 20%.

    High: 23 °C

    Mostly Sunny
    and Breezy
    then Slight
    Chance Rain
    and Windy

  • Wednesday Night

    Wednesday Night: Rain likely before 1am, then rain and snow likely between 1am and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 1. Breezy, with a southwest wind 37 to 45 km/h becoming northwest after midnight. Winds could gust as high as 65 km/h. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 1 °C

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 11. Breezy, with a northwest wind 30 to 35 km/h decreasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h.

    High: 11 °C

    Decreasing
    Clouds and
    Breezy then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 1. Northwest wind 8 to 13 km/h becoming south after midnight.

    Low: 1 °C

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 17.

    High: 17 °C

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain before 1am. Partly cloudy, with a low around 4.

    Low: 4 °C

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 15.

    High: 15 °C

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 6.

    Low: 6 °C

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 14. South wind 13 to 23 km/h, with gusts as high as 47 km/h.
Wednesday
A slight chance of rain between noon and 1pm. Mostly sunny, with a high near 23. Windy, with a south wind 26 to 36 km/h increasing to 38 to 48 km/h in the afternoon. Winds could gust as high as 80 km/h. Chance of precipitation is 20%.
Wednesday Night
Rain likely before 1am, then rain and snow likely between 1am and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 1. Breezy, with a southwest wind 37 to 45 km/h becoming northwest after midnight. Winds could gust as high as 65 km/h. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 11. Breezy, with a northwest wind 30 to 35 km/h decreasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h.
Thursday Night
Mostly clear, with a low around 1. Northwest wind 8 to 13 km/h becoming south after midnight.
Friday
Partly sunny, with a high near 17.
Friday Night
A 20 percent chance of rain before 1am. Partly cloudy, with a low around 4.
Saturday
Sunny, with a high near 15.
Saturday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 6.
Sunday
Rain, with thunderstorms also possible after 1pm. High near 17. Chance of precipitation is 80%.
Sunday Night
A 20 percent chance of rain. Partly cloudy, with a low around 4.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 14.
Monday Night
A 20 percent chance of rain. Partly cloudy, with a low around 3.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 14.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Brussels IL
 38.92°N 90.62°W (Elev. 502 m)
Last Update:
1:52 am CDT Mar 19, 2025
Forecast Valid:
2am CDT Mar 19, 2025-6pm CDT Mar 25, 2025
 
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