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.

Fair

63°F

17°C

Humidity 86%
Wind Speed S 6 mph
Barometer 29.91 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 12 Oct 5:15 am CDT
Extended Forecast for

Monmouth IL

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 64. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers

  • Wednesday

    Wednesday: Showers, mainly before 1pm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Cloudy then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 90%.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 58. Breezy.

    High: 58 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 86. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 64. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers, mainly before 1pm. High near 74. Chance of precipitation is 80%.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57.
Thursday
Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 90%.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 58. Breezy.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 58.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.9°N 90.65°W (Elev. 774 ft)
Last Update:
5:21 am CDT Oct 12, 2026
Forecast Valid:
5am CDT Oct 12, 2026-6pm CDT Oct 18, 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