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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: 8:01 am CST Dec 14, 2025 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday 30% chance of rain on Thursday Mostly Sunny on Friday 20% chance of rain on Saturday
High: 8 °F Low: 10 °F High: 34°F High: 41°F High: 43°F High: 51°F High: 36°F High: 50°F
Low: 20°F Low: 30°F Low: 35°F Low: 19°F Low: 30°F  
Sunny Mostly Clear Sunny Sunny Mostly Sunny Rain Mostly Sunny Rain
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
Clear
as of 11:35 AM CST
Rel. Humidity: 64%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.73 in.
Flight Rule: VFR
Wind Data
8 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
-0°
Clear
as of 11:35 AM CST
Rel. Humidity: 70%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.74 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny and cold, with a high near 8. Northwest wind 5 to 7 mph becoming calm.

Mostly Clear on Tonight Tonight... Mostly clear, with a temperature rising to around 10 by 5am. Wind chill values as low as -10. Light and variable wind becoming south 8 to 13 mph in the evening. Winds could gust as high as 23 mph.

Sunny on Monday Monday... Sunny, with a high near 34. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.

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

Sunny on Tuesday Tuesday... Sunny, with a high near 41. South wind 5 to 7 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 30.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 43.

20% chance of thunderstorms Wednesday Night Wednesday Night... A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 35.

30% chance of rain Thursday Thursday... A 30 percent chance of rain before noon. Partly sunny, with a high near 51.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 19.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 36.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 30.

20% chance of rain Saturday Saturday... A 20 percent chance of rain. Partly sunny, with a high near 50.

Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:16 AM
Sunset: 4:38 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:39 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.