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.

Fair

87°F

31°C

Humidity 70%
Wind Speed S 10 mph
Barometer 30.04 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 18 Aug 11:35 am CDT
Extended Forecast for

3 Miles SSW North Henderson IL

Heat Advisory August 18, 12:00pm until August 18, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 91. Heat index values as high as 108. South wind around 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Southwest wind around 5 mph becoming northwest in the afternoon.

    High: 87 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. North wind around 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 91. Heat index values as high as 108. South wind around 10 mph.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Southwest wind around 5 mph becoming northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 67. North wind around 5 mph.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW North Henderson IL
 41.05°N 90.5°W (Elev. 692 ft)
Last Update:
11:01 am CDT Aug 18, 2025
Forecast Valid:
11am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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