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

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

22°F

-6°C

Humidity 100%
Wind Speed S 15 G 21 mph
Barometer 29.98 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 2 Dec 10:55 pm CST
Extended Forecast for

Monmouth IL

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 25 by 5am. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 20 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow, mainly between 10am and 5pm. Cloudy, with a high near 33. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 33 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -3. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: -3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind around 5 mph becoming calm in the morning.

    High: 13 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -1.

    Low: -1 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 25 by 5am. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of snow, mainly between 10am and 5pm. Cloudy, with a high near 33. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around -3. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind around 5 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around -1.
Friday
Partly sunny, with a high near 28.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 29.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 17.
Sunday
A 30 percent chance of snow. Mostly cloudy, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Partly sunny, with a high near 27.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16.
Tuesday
Mostly cloudy, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.9°N 90.65°W (Elev. 774 ft)
Last Update:
9:21 pm CST Dec 2, 2025
Forecast Valid:
11pm CST Dec 2, 2025-6pm CST Dec 9, 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