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

55°F

13°C

Humidity 79%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 14 Jun 10:55 pm CDT
Extended Forecast for

Monmouth IL

  • Tonight

    Tonight: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. West wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 78. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 78 °F

    Showers
    Likely then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm.
Monday
Sunny, with a high near 76. West wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 78. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 55.
Juneteenth
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A 50 percent chance of showers. Partly cloudy, with a low around 63.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 80.
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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:
10:12 pm CDT Jun 14, 2026
Forecast Valid:
11pm CDT Jun 14, 2026-6pm CDT Jun 21, 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