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Union, Illinois Weather Forecast
Union, Illinois Weather
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Weather Forecast for Union, Illinois : Will County
Issued: 6:51 am CST Nov 26, 2025 Latitude: 41.4969757 Longitude: -88.0233891 View on Google Maps

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Today Tonight Thanksgiving Day Friday Saturday Sunday Monday Tuesday
40% chance of snow on Today Mostly Cloudy on Tonight Mostly Sunny on Thanksgiving Day Sunny on Friday 100% chance of snow on Saturday 20% chance of snow on Sunday 20% chance of snow on Monday Mostly Sunny on Tuesday
High: 35°F Low: 24°F High: 33°F High: 32°F High: 32°F High: 32°F High: 21°F High: 21°F
Low: 20°F Low: 23°F Low: 30°F Low: 9°F Low: 7°F  
Snow Mostly Cloudy Mostly Sunny Sunny Snow Snow Snow Mostly Sunny
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Current Conditions at
JOLIET - (KJOT)
36°
Feels like 25°F
Cloudy
as of 6:55 AM CST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 33 MPH
250° West
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
ROMEOVILLE WFO - (KLOT)
34°
Feels like 21°F
Cloudy
as of 6:45 AM CST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 9 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Wind Data
25 MPH
Gust: 45 MPH
250° West
Cloud Level(s): Broken at 2000ft, Solid Overcast at 2600ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
34°
Feels like 20°F
Cloudy
as of 6:55 AM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
26 MPH
Gust: 40 MPH
270° West
Cloud Level(s): Solid Overcast at 2500ft
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
36°
Feels like 23°F
Cloudy
Light Snow
as of 6:53 AM CST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: MVFR
Wind Data
24 MPH
Gust: 43 MPH
250° West
Cloud Level(s): Scattered at 2200ft, Broken at 2800ft, Solid Overcast at 3300ft
40% chance of snow Today Today... Scattered snow showers, mainly before noon, then isolated flurries after 5pm. Cloudy, with a high near 35. Windy, with a west wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 40%.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 24. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 45 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 20. West 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.
80% chance of snow Friday Night Friday Night... Snow after midnight. Low around 23. Chance of precipitation is 80%.
100% chance of snow Saturday Saturday... Snow. High near 32. Chance of precipitation is 100%.
Snow on Saturday Night Saturday Night... Snow, possibly mixed with rain. Cloudy, with a low around 30.
20% chance of snow Sunday Sunday... A chance of snow before noon. Mostly cloudy, with a high near 32.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 9.
20% chance of snow Monday Monday... A chance of snow. Partly sunny, with a high near 21.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 7.
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.