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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: 12:21 am CST Jan 15, 2026 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday M.L.King Day Tuesday Wednesday
Clear on Overnight Increasing Clouds on Thursday Partly Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday Mostly Sunny on Wednesday
Low: 15°F High: 32°F High: 39°F High: 20°F High: 22°F High: 19°F High: 28°F High: 36°F
Low: 27°F Low: 15°F Low: 5°F Low: 10°F Low: 7°F Low: 17°F  
Clear Increasing Clouds Partly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
18°
Feels like 6°F
Clear
as of 1:15 AM CST
Rel. Humidity: 61%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
9 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
18°
Feels like 3°F
Clear
as of 12:54 AM CST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
14 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
16°
Feels like 2°F
Clear
as of 1:15 AM CST
Rel. Humidity: 72%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
13 MPH
330° Northwest
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a low around 15. Northwest wind 8 to 11 mph.
Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 32. Northwest wind 6 to 9 mph becoming south in the afternoon.
60% chance of snow Thursday Night Thursday Night... Snow likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 27. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Partly Sunny on Friday Friday... Partly sunny, with a high near 39. West wind 14 to 17 mph, with gusts as high as 25 mph.
30% chance of snow Friday Night Friday Night... A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 15. Northwest wind around 16 mph, with gusts as high as 23 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy and cold, with a high near 20.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 5.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 22.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 10.
Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny and cold, with a high near 19.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 7.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 28.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 17.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 36.
Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:22 AM
Sunset: 5:01 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:31 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 05:46 AM
Astro Sunset: 6:37 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.