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Union, Illinois Weather Forecast
Union, Illinois Weather
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Weather Forecast for Union, Illinois : Will County
Issued: 1:31 pm CST Nov 26, 2025 Latitude: 41.4969757 Longitude: -88.0233891 View on Google Maps

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This Afternoon Tonight Thanksgiving Day Friday Saturday Sunday Monday Tuesday
20% chance of snow on This Afternoon Mostly Cloudy on Tonight Mostly Sunny on Thanksgiving Day Sunny on Friday 100% chance of snow on Saturday 20% chance of snow on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday
High: 34°F Low: 25°F High: 33°F High: 32°F High: 32°F High: 30°F High: 19°F High: 21°F
Low: 21°F Low: 21°F Low: 26°F Low: 6°F Low: 6°F  
Snow Mostly Cloudy Mostly Sunny Sunny Snow Snow Partly Sunny Mostly Sunny
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Current Conditions at
JOLIET - (KJOT)
36°
Feels like 24°F
Cloudy
as of 1:35 PM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 28 MPH
280° West
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
34°
Feels like 20°F
Cloudy
as of 1:35 PM CST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
28 MPH
Gust: 37 MPH
280° West
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
34°
Feels like 20°F
Cloudy
as of 12:53 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
30 MPH
Gust: 47 MPH
280° West
Cloud Level(s): Broken at 3400ft, Solid Overcast at 4100ft
20% chance of snow This Afternoon This Afternoon... Isolated snow showers before 5pm, then isolated flurries after 5pm. Cloudy, with a high near 34. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 40 mph.
Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 33. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny on Friday Friday... Sunny, with a high near 32. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
50% chance of snow Friday Night Friday Night... A 50 percent chance of snow after midnight. Mostly cloudy, with a low around 21.
100% chance of snow Saturday Saturday... Snow. High near 32. Chance of precipitation is 100%.
Snow on Saturday Night Saturday Night... Snow. Cloudy, with a low around 26.
20% chance of snow Sunday Sunday... A chance of snow showers before noon. Mostly cloudy, with a high near 30.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 6.
Partly Sunny on Monday Monday... Partly sunny, with a high near 19.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 6.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 21.
Current Radar Image


Sun Almanac for Union, Illinois
Sunrise: 06:54 AM
Sunset: 4:25 PM
Civil Sunrise:06:24 AM
Civil Sunset: 4:55 PM
Nautical Sunrise: 05:50 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:16 AM
Astro Sunset: 6:03 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.