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.

Partly Cloudy

78°F

26°C

Humidity 86%
Wind Speed S 5 mph
Barometer 29.90 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Aug 5:35 pm CDT
Extended Forecast for

Galesburg IL

Flood Watch August 13, 05:44pm until August 14, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 13, 05:44pm until August 14, 10:00am

    NOW until 10:00am Fri

    Flood Watch

  • Tonight

    Low: 69 °F

    Chance
    T-storms then
    Heavy Rain

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Partly sunny, with a high near 86. Heat index values as high as 100. East wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 72. East wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 89. Heat index values as high as 105. South southeast wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 89 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 72. West wind around 6 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. North northwest wind around 6 mph becoming calm after midnight.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. East wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Partly sunny, with a high near 86. Heat index values as high as 100. East wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 72. East wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 89. Heat index values as high as 105. South southeast wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 72. West wind around 6 mph becoming calm in the evening.
Sunday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 66. North northwest wind around 6 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 68.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Thursday
Partly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Galesburg IL
 40.94°N 90.39°W (Elev. 764 ft)
Last Update:
4:37 pm CDT Aug 13, 2026
Forecast Valid:
5pm CDT Aug 13, 2026-6pm CDT Aug 20, 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