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Gilson, Illinois Weather Forecast
Gilson, Illinois Weather
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Weather Forecast for Gilson, Illinois : Knox County
Issued: 1:39 am CST Dec 21, 2025 Latitude: 40.8617048 Longitude: -90.2015111 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Clear on Overnight Sunny on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Cloudy on Wednesday Mostly Cloudy on Christmas Day Mostly Cloudy on Friday Mostly Cloudy on Saturday
Low: 19°F High: 36°F High: 45°F High: 49°F High: 55°F High: 60°F High: 47°F High: 47°F
Low: 26°F Low: 37°F Low: 34°F Low: 47°F Low: 36°F Low: 31°F  
Clear Sunny Partly Sunny Mostly Sunny Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
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Current Conditions at
GALESBURG - (KGBG)
25°
Clear
as of 1:15 AM CST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
6 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
PEORIA - (KPIA)
28°
Clear
as of 12:54 AM CST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
3 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
23°
Feels like 13°F
Clear
as of 1:15 AM CST
Rel. Humidity: 79%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
9 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
27°
Clear
as of 1:15 AM CST
Rel. Humidity: 63%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
6 MPH
290° West
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a low around 19. North northwest wind 6 to 8 mph, with gusts as high as 18 mph.

Sunny on Sunday Sunday... Sunny, with a high near 36. Calm wind becoming south southeast around 6 mph in the afternoon.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 26. South wind 6 to 10 mph, with gusts as high as 22 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 45. South wind 8 to 13 mph, with gusts as high as 22 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 37. South wind around 7 mph becoming west after midnight. Winds could gust as high as 16 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 49. West wind around 6 mph becoming calm in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34. Calm wind becoming east southeast 5 to 7 mph after midnight. Winds could gust as high as 15 mph.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 55.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 47.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 60.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 36.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 47.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 31.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 47.

Current Radar Image


Sun Almanac for Gilson, Illinois
Sunrise: 07:22 AM
Sunset: 4:36 PM
Civil Sunrise:06:51 AM
Civil Sunset: 5:07 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:15 PM
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