Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

92°F

33°C

Humidity 57%
Wind Speed W 7 mph
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 4 Sep 12:55 pm CDT
Extended Forecast for

Monmouth IL

Extreme Heat Warning September 4, 01:13pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 01:13pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 95 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 104. Calm wind becoming north around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny, with a high near 93. Heat index values as high as 104. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. East wind around 5 mph.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 65.
Labor Day
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.9°N 90.65°W (Elev. 774 ft)
11:46 am CDT Sep 4, 2026
1pm CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database