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.

Light Rain

69°F

21°C

Humidity 89%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 Jun 9:55 am CDT
Extended Forecast for

Gilson IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. South wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 86 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind around 14 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Heat index values as high as 105. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 32 mph.

    High: 92 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 74. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. South wind 9 to 17 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 75. South wind around 14 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 92. Heat index values as high as 105. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 32 mph.
Saturday Night
Clear, with a low around 74. South southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 94. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Clear, with a low around 74. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 94. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gilson IL
 40.87°N 90.21°W (Elev. 699 ft)
Last Update:
9:56 am CDT Jun 20, 2025
Forecast Valid:
10am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation