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.

Fair

59°F

15°C

Humidity 59%
Wind Speed E 8 mph
Barometer 30.13 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 May 11:15 pm CDT
Extended Forecast for

Galesburg IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. East wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 70. East wind around 11 mph, with gusts as high as 22 mph.

    High: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly between 8pm and 1am. Mostly cloudy, with a low around 54. East wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 77. Light and variable wind becoming northwest around 5 mph in the afternoon.

    High: 77 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 56. Light and variable wind.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 80. Light west northwest wind.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. East wind 9 to 11 mph, with gusts as high as 24 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 70. East wind around 11 mph, with gusts as high as 22 mph.
Friday Night
A 30 percent chance of showers, mainly between 8pm and 1am. Mostly cloudy, with a low around 54. East wind 3 to 8 mph. Winds could gust as high as 16 mph.
Saturday
Partly sunny, with a high near 77. Light and variable wind becoming northwest around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 56. Light and variable wind.
Sunday
Partly sunny, with a high near 80. Light west northwest wind.
Sunday Night
Partly cloudy, with a low around 56. Calm wind.
Memorial Day
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galesburg IL
 40.94°N 90.39°W (Elev. 764 ft)
Last Update:
9:36 pm CDT May 21, 2026
Forecast Valid:
11pm CDT May 21, 2026-6pm CDT May 28, 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