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.

Overcast

38°F

3°C

Humidity 99%
Wind Speed W 15 G 18 mph
Barometer 30.02 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 7 Mar 6:15 pm CST
Extended Forecast for

Monmouth IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Partly Sunny
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before noon. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely
    then Chance
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 51.
Tuesday
Rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 38. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before noon. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 40. Breezy.
Friday
Mostly cloudy, with a high near 60. Breezy.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Mostly cloudy, with a high near 46.
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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:
4:26 pm CST Mar 7, 2026
Forecast Valid:
6pm CST Mar 7, 2026-6pm CDT Mar 14, 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