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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: 5:11 pm CST Jan 4, 2026 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Tonight Morning Fog on Monday Mostly Sunny on Tuesday Sunny on Wednesday 50% chance of rain on Thursday 40% chance of rain on Friday Partly Sunny on Saturday Mostly Sunny on Sunday
Low: 27°F High: 51°F High: 55°F High: 58°F High: 54°F High: 48°F High: 40°F High: 36°F
Low: 42°F Low: 33°F Low: 42°F Low: 40°F Low: 31°F Low: 21°F  
Mostly Clear Morning Fog Mostly Sunny Sunny Rain Rain Partly Sunny Mostly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
36°
Feels like 28°F
Clear
as of 7:35 PM CST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
9 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
36°
Feels like 27°F
Clear
as of 6:54 PM CST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
12 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
34°
Feels like 25°F
Clear
as of 7:35 PM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
10 MPH
160° South
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 27. South wind 7 to 11 mph, with gusts as high as 23 mph.
Morning Fog on Monday Monday... Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 51. Southwest wind 5 to 7 mph.
Partly Cloudy on Monday Night Monday Night... Cloudy, then gradually becoming partly cloudy, with a low around 42. Southeast wind 6 to 8 mph becoming southwest after midnight.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 55. West wind 7 to 10 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 33. West wind around 6 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 58.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 42.
50% chance of rain Thursday Thursday... A 50 percent chance of rain. Mostly cloudy, with a high near 54.
60% chance of rain Thursday Night Thursday Night... Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
40% chance of rain Friday Friday... A 40 percent chance of rain. Partly sunny, with a high near 48.
20% chance of rain Friday Night Friday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 40.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 36.
Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:24 AM
Sunset: 4:50 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:27 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.