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La Grange, Illinois Weather Forecast
La Grange, Illinois Weather
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Weather Forecast for La Grange, Illinois : Brown County
Issued: 8:26 am CST Dec 15, 2025 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on Today Cloudy on Tonight Sunny on Tuesday Mostly Sunny on Wednesday 50% chance of rain on Thursday Mostly Sunny on Friday Partly Sunny on Saturday Partly Sunny on Sunday
High: 31°F Low: 20°F High: 42°F High: 41°F High: 49°F High: 34°F High: 50°F High: 41°F
Low: 28°F Low: 44 °F Low: 14°F Low: 28°F Low: 27°F  
Sunny Cloudy Sunny Mostly Sunny Rain Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
16°
Feels like 0°F
Clear
as of 9:15 AM CST
Rel. Humidity: 61%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
18 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
21°
Feels like 5°F
Clear
as of 8:54 AM CST
Rel. Humidity: 57%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
20 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
16°
Feels like 2°F
Clear
as of 9:15 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 20 MPH
190° South
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 31. South wind 9 to 14 mph becoming light southwest in the afternoon. Winds could gust as high as 29 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 20. Southwest wind 3 to 6 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 42. South wind 6 to 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28. South wind 5 to 8 mph becoming light and variable after midnight.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 41. Calm wind becoming southeast 5 to 9 mph in the afternoon.

40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of rain after midnight. Mostly cloudy, with a temperature rising to around 44 by 5am.

50% chance of rain Thursday Thursday... A 50 percent chance of rain before noon. Partly sunny, with a high near 49. Breezy.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 14. Blustery.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 34.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 28.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 50.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 27.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 41.

Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:17 AM
Sunset: 4:38 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:15 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.