Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

5°F

-15°C

Humidity 90%
Wind Speed Calm
Barometer NA
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 20 Jan 12:55 am CST
Extended Forecast for

Monmouth IL

  • Overnight

    Overnight: Partly cloudy, with a low around 5. Wind chill values as low as -5. Southwest wind around 5 mph.

    Low: 5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 29. Wind chill values as low as -5. South wind 5 to 10 mph.

    High: 29 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly after midnight.  Mostly cloudy, with a steady temperature around 26. Southeast wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 26 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 3.

    High: 3 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 5. Wind chill values as low as -5. Southwest wind around 5 mph.
Tuesday
Increasing clouds, with a high near 29. Wind chill values as low as -5. South wind 5 to 10 mph.
Tuesday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a steady temperature around 26. Southeast wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Wednesday
Mostly sunny, with a high near 34. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around -3.
Friday
Partly sunny and cold, with a high near 3.
Friday Night
Mostly cloudy, with a low around -9.
Saturday
Partly sunny and cold, with a high near 7.
Saturday Night
Partly cloudy, with a low around -4.
Sunday
Mostly sunny, with a high near 15.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.9°N 90.65°W (Elev. 774 ft)
11:21 pm CST Jan 19, 2026
1am CST Jan 20, 2026-6pm CST Jan 26, 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