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

60°F

16°C

Humidity 77%
Wind Speed SE 6 mph
Barometer 29.87 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Apr 2:55 am CDT
Extended Forecast for

Galesburg IL

  • Overnight

    Overnight: Mostly clear, with a low around 56. South southeast wind around 6 mph, with gusts as high as 16 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 84. Breezy, with a south southeast wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Partly Sunny
    then T-storms
    Likely and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 40. South wind 14 to 18 mph becoming northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 51. West northwest wind around 17 mph, with gusts as high as 29 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. West wind 6 to 13 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 8am. Otherwise, sunny, with a high near 56. West northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. North northwest wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 17 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 63.

    High: 63 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 56. South southeast wind around 6 mph, with gusts as high as 16 mph.
Friday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 84. Breezy, with a south southeast wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 40. South wind 14 to 18 mph becoming northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Mostly sunny, with a high near 51. West northwest wind around 17 mph, with gusts as high as 29 mph.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. West wind 6 to 13 mph, with gusts as high as 25 mph.
Sunday
Widespread frost before 8am. Otherwise, sunny, with a high near 56. West northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. North northwest wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 17 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
A chance of showers. Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galesburg IL
 40.96°N 90.36°W (Elev. 791 ft)
Last Update:
2:50 am CDT Apr 17, 2026
Forecast Valid:
3am CDT Apr 17, 2026-6pm CDT Apr 23, 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