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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: 7:51 pm CST Dec 27, 2025 Latitude: 39.9472702 Longitude: -90.5373487 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday Saturday
40% chance of thunderstorms on Tonight 80% chance of thunderstorms on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday Mostly Cloudy on Saturday
Low: 51°F High: 40 °F High: 23°F High: 31°F High: 39°F High: 31°F High: 35°F High: 42°F
Low: 15°F Low: 13°F Low: 25°F Low: 20°F Low: 14°F Low: 24°F  
Thunderstorms Thunderstorms Partly Sunny Mostly Sunny Partly Sunny Mostly Sunny Mostly Sunny Mostly Cloudy
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
55°
Cloudy
as of 7:55 PM CST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 2 1/2 Miles
Pressure: 29.75 in.
Flight Rule: LIFR
Wind Data
9 MPH
170° South
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
QUINCY - (KUIN)
52°
Mostly Cloudy
Fog
as of 8:05 PM CST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 29.72 in.
Flight Rule: IFR
Wind Data
6 MPH
140° Southeast
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
50°
Cloudy
Mist
as of 7:55 PM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 3/4 Miles
Pressure: 29.77 in.
Flight Rule: LIFR
Wind Data
8 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 300ft
40% chance of thunderstorms Tonight Tonight... A chance of showers, with thunderstorms also possible after 3am. Patchy fog before midnight. Otherwise, cloudy, with a low around 51. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

80% chance of thunderstorms Sunday Sunday... Showers and thunderstorms before 3pm, then showers likely. Patchy fog between 7am and noon. Temperature falling to around 40 by 5pm. Breezy, with a south wind 6 to 11 mph becoming northwest 18 to 28 mph. Winds could gust as high as 41 mph. Chance of precipitation is 80%.

Partly Cloudy on Sunday Night Sunday Night... Cloudy, then gradually becoming partly cloudy, with a low around 15. Blustery, with a west wind 26 to 29 mph, with gusts as high as 43 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 23. Breezy, with a northwest wind 21 to 26 mph, with gusts as high as 37 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 13. Blustery, with a northwest wind 11 to 21 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 31.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 25.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 39.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 20.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 31.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 14.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 35.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 24.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 42.

Current Radar Image


Sun Almanac for La Grange, Illinois
Sunrise: 07:23 AM
Sunset: 4:44 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:18 AM
Nautical Sunset: 5:48 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:21 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.