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

10°F

-12°C

Humidity 93%
Wind Speed NW 7 mph
Barometer 30.55 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 23 Feb 6:35 am CST
Extended Forecast for

Gilson IL

  • Today

    Today: Mostly sunny, with a high near 30. Wind chill values between -3 and 7. North northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49. Breezy, with a south wind 11 to 21 mph becoming west southwest in the afternoon. Winds could gust as high as 33 mph.

    High: 49 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West northwest wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 41. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Snow likely. Mostly cloudy, with a low around 25. Light and variable wind becoming east 5 to 7 mph in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    Low: 25 °F

    Snow Likely

  • Thursday

    Thursday: A 30 percent chance of snow before noon. Mostly sunny, with a high near 41. East wind 6 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 41 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 30. Wind chill values between -3 and 7. North northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Tonight
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 49. Breezy, with a south wind 11 to 21 mph becoming west southwest in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West northwest wind 9 to 11 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 41. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 25. Light and variable wind becoming east 5 to 7 mph in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 41. East wind 6 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 24.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 30.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A chance of snow. Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gilson IL
 40.87°N 90.21°W (Elev. 699 ft)
Last Update:
6:36 am CST Feb 23, 2026
Forecast Valid:
6am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation