National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Overcast

47°F

8°C

Humidity 100%
Wind Speed NW 14 G 23 mph
Barometer 29.75 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Apr 12:55 am CDT
Extended Forecast for

Galesburg IL

Flood Watch until April 18, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until April 18, 04:00am

    NOW until 4:00am Sat

    Flood Watch

  • Overnight

    Low: 40 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 53. West northwest wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 35. West southwest wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, mostly sunny, with a high near 56. West wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 31 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 17 mph.

    High: 60 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South southeast wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 4am. Cloudy, with a low around 40. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 53. West northwest wind 15 to 18 mph, with gusts as high as 29 mph.
Saturday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 35. West southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Sunday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 56. West wind 6 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 17 mph.
Monday Night
Partly cloudy, with a low around 49. South southeast wind 9 to 11 mph, with gusts as high as 24 mph.
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
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 72.
Basemap Options
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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:
12:36 am CDT Apr 18, 2026
Forecast Valid:
1am CDT Apr 18, 2026-6pm CDT Apr 24, 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