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

Hazardous Weather Conditions

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Partly Cloudy

66°F

19°C

Humidity 42%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 9 Apr 11:55 am CDT
Extended Forecast for

Monmouth IL

  • This Afternoon

    This Afternoon: A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. West wind around 5 mph. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 48. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 60. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 60 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. North wind around 5 mph becoming east after midnight.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 63.

    High: 63 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 60%.

    High: 74 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 63. Breezy. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. West wind around 5 mph. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 48. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 60. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 41. North wind around 5 mph becoming east after midnight.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 63. Breezy. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Monday Night
Showers likely, mainly after 1am. Partly cloudy, with a low around 64. Breezy. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. High near 78. Breezy. Chance of precipitation is 80%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 68.
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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:
9:32 am CDT Apr 9, 2026
Forecast Valid:
12pm CDT Apr 9, 2026-6pm CDT Apr 15, 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