url:
Union, Illinois Weather Forecast
Union, Illinois Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

No Watches or Warnings for Union
Change location by the zip code or city,state: or search for other weather forecast locations in Illinois by name.
Weather Forecast for Union, Illinois : Will County
Issued: 11:41 am CST Jan 13, 2026 Latitude: 41.4969757 Longitude: -88.0233891 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday M.L.King Day
Mostly Cloudy on Today 30% chance of snow on Tonight 40% chance of snow on Wednesday Mostly Sunny on Thursday 70% chance of snow on Friday 20% chance of snow on Saturday Partly Sunny on Sunday Partly Sunny on M.L.King Day
High: 49°F Low: 26°F High: 22 °F High: 25°F High: 35°F High: 19°F High: 17°F High: 19°F
Low: 14°F Low: 22°F Low: 15°F Low: 7°F Low: 6°F  
Mostly Cloudy Snow Snow Mostly Sunny Snow Snow Partly Sunny Partly Sunny
-
Current Conditions at
JOLIET - (KJOT)
45°
Feels like 38°F
Clear
as of 11:35 AM CST
Rel. Humidity: 65%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.63 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 16 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
ROMEOVILLE WFO - (KLOT)
41°
Feels like 33°F
Clear
as of 10:55 AM CST
Rel. Humidity: 70%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.66 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 21 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
45°
Feels like 36°F
Clear
as of 11:35 AM CST
Rel. Humidity: 65%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.63 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 25 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
43°
Feels like 34°F
Partly Cloudy
as of 10:53 AM CST
Rel. Humidity: 60%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.62 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 30 MPH
250° West
Cloud Level(s): Few at 11000ft, Few at 20000ft, Scattered at 25000ft
Mostly Cloudy on Today Today... Mostly cloudy, then gradually becoming sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
30% chance of snow Tonight Tonight... Isolated snow showers before 3am, then scattered flurries with isolated snow showers between 3am and 5am, then scattered snow showers after 5am. Increasing clouds, with a low around 26. Blustery, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
40% chance of snow Wednesday Wednesday... Scattered snow showers before 9am, then scattered flurries with isolated snow showers between 9am and noon, then scattered flurries after noon. Mostly cloudy, with a temperature falling to around 22 by 5pm. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 14. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 25. North northwest wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
80% chance of snow Thursday Night Thursday Night... Snow, mainly after midnight. Low around 22. Chance of precipitation is 80%.
70% chance of snow Friday Friday... A chance of snow before noon, then snow showers likely after noon. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.
20% chance of snow Friday Night Friday Night... A chance of snow showers. Mostly cloudy, with a low around 15.
20% chance of snow Saturday Saturday... A chance of snow showers. Mostly cloudy, with a high near 19.
20% chance of snow Saturday Night Saturday Night... A chance of snow showers before midnight. Mostly cloudy, with a low around 7.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 17.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 6.
Partly Sunny on M.L.King Day M.L.King Day... Partly sunny, with a high near 19.
Current Radar Image


Sun Almanac for Union, Illinois
Sunrise: 07:17 AM
Sunset: 4:45 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:16 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:23 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.