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.

Mostly Cloudy

78°F

26°C

Humidity 67%
Wind Speed N 5 mph
Barometer 30.06 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 4:35 pm CDT
Extended Forecast for

Galesburg IL

  • Tonight

    Tonight: Mostly clear, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 79. West southwest wind 3 to 8 mph. Winds could gust as high as 16 mph. Chance of precipitation is 30%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 4am, then a slight chance of showers. Increasing clouds, with a low around 65. Light and variable wind. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the morning.

    High: 78 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78. Light east wind.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers. Partly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 79. West southwest wind 3 to 8 mph. Winds could gust as high as 16 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 4am, then a slight chance of showers. Increasing clouds, with a low around 65. Light and variable wind. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 61. Calm wind.
Thursday
Sunny, with a high near 78. Light east wind.
Thursday Night
Mostly clear, with a low around 61. Calm wind.
Friday
Mostly sunny, with a high near 80.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Partly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galesburg IL
 40.94°N 90.39°W (Elev. 764 ft)
Last Update:
4:36 pm CDT Aug 17, 2026
Forecast Valid:
4pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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