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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: 5:01 pm CST Dec 17, 2025 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
40% chance of rain on Tonight 90% chance of rain on Thursday Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday
Low: 50 °F High: 38 °F High: 34°F High: 49°F High: 39°F High: 43°F High: 53°F High: 52°F
Low: 19°F Low: 35 °F Low: 22°F Low: 27°F Low: 36°F Low: 34°F  
Rain Rain Sunny Partly Sunny Mostly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
36°
Clear
as of 5:35 PM CST
Rel. Humidity: 86%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
8 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
43°
Clear
as of 4:54 PM CST
Rel. Humidity: 75%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
7 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
36°
Feels like 28°F
Clear
as of 5:35 PM CST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
9 MPH
140° Southeast
Cloud Level(s): Clear
40% chance of rain Tonight Tonight... Scattered showers after 5am. Increasing clouds, with a temperature rising to around 50 by 5am. South wind 7 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

90% chance of rain Thursday Thursday... Showers, mainly before noon. Temperature falling to around 38 by 5pm. Breezy, with a south wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%.

30% chance of rain & snow Thursday Night Thursday Night... Scattered rain showers before 7pm, then scattered snow showers between 7pm and midnight. Partly cloudy, with a low around 19. Breezy, with a west wind 15 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

Sunny on Friday Friday... Sunny, with a high near 34. West wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a temperature rising to around 35 by 5am. South wind 13 to 16 mph, with gusts as high as 24 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 49.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 22.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39.

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

Partly Sunny on Monday Monday... Partly sunny, with a high near 43.

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

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 53.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 52.

Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:18 AM
Sunset: 4:39 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:16 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.