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

76°F

24°C

Humidity 46%
Wind Speed SW 5 mph
Barometer 29.86 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Apr 5:55 pm CDT
Extended Forecast for

Galesburg IL

  • Tonight

    Tonight: Clear, with a low around 56. Light and variable wind becoming south southeast 5 to 7 mph in the evening.

    Low: 56 °F

    Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 9 to 18 mph, with gusts as high as 31 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 40. South wind around 16 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 40 °F

    Heavy Rain
    then Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 52. West northwest wind around 18 mph, with gusts as high as 29 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 34. West wind 6 to 14 mph, with gusts as high as 26 mph.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, sunny, with a high near 56. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 56 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. North northwest wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 56. Light and variable wind becoming south southeast 5 to 7 mph in the evening.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 9 to 18 mph, with gusts as high as 31 mph.
Friday Night
Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 40. South wind around 16 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
Mostly sunny, with a high near 52. West northwest wind around 18 mph, with gusts as high as 29 mph.
Saturday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 34. West wind 6 to 14 mph, with gusts as high as 26 mph.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 56. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. North northwest wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
A chance of showers. Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Galesburg IL
 40.94°N 90.39°W (Elev. 764 ft)
Last Update:
5:21 pm CDT Apr 16, 2026
Forecast Valid:
6pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation