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

17°F

-8°C

Humidity 79%
Wind Speed S 5 mph
Barometer 30.22 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 24 Feb 12:55 am CST
Extended Forecast for

Monmouth IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 14. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, with a high near 47. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph.

    High: 47 °F

    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Northwest wind 5 to 10 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 14. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Cloudy, with a high near 47. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 40. Northwest wind 5 to 10 mph.
Wednesday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 37.
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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:
10:42 pm CST Feb 23, 2026
Forecast Valid:
1am CST Feb 24, 2026-6pm CST Mar 2, 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