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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: 11:21 am CST Jan 15, 2026 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday M.L.King Day Tuesday Wednesday
Partly Sunny on This Afternoon 80% chance of snow on Tonight 50% chance of snow on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day Sunny on Tuesday Mostly Sunny on Wednesday
High: 32°F Low: 26°F High: 42°F High: 20°F High: 24°F High: 19°F High: 27°F High: 38°F
Low: 16°F Low: 8°F Low: 10°F Low: 6°F Low: 16°F  
Partly Sunny Snow Snow Mostly Cloudy Mostly Sunny Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
27°
Clear
as of 1:35 PM CST
Rel. Humidity: 38%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
25°
Clear
as of 12:54 PM CST
Rel. Humidity: 45%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
27°
Feels like 16°F
Clear
as of 1:35 PM CST
Rel. Humidity: 45%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Clear
Partly Sunny on This Afternoon This Afternoon... Sunny early, then becoming partly sunny, with a high near 32. Southwest wind 7 to 9 mph.
80% chance of snow Tonight Tonight... Snow, mainly before 11pm. Low around 26. South wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
50% chance of snow Friday Friday... Scattered snow showers, mainly after 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 42. West wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
50% chance of snow Friday Night Friday Night... Scattered snow showers before midnight, then scattered flurries after midnight. Mostly cloudy, with a low around 16. Northwest wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Mostly Cloudy on Saturday Saturday... Mostly cloudy and cold, with a high near 20. West wind around 15 mph, with gusts as high as 23 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 8.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 24.
Cloudy on Sunday Night Sunday Night... Partly 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 6.
Sunny on Tuesday Tuesday... Sunny, with a high near 27.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 16.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 38.
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.