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: 1:35 pm CST Jan 2, 2026 Latitude: 41.4969757 Longitude: -88.0233891 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Partly Sunny on This Afternoon Mostly Cloudy on Tonight Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday 20% chance of rain on Thursday
High: 26°F Low: 19°F High: 30°F High: 30°F High: 43°F High: 48°F High: 48°F High: 51°F
Low: 16°F Low: 26°F Low: 34°F Low: 31°F Low: 37°F  
Partly Sunny Mostly Cloudy Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny Rain
-
Current Conditions at
JOLIET - (KJOT)
27°
Clear
as of 2:15 PM CST
Rel. Humidity: 53%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ROMEOVILLE WFO - (KLOT)
23°
Clear
as of 1:45 PM CST
Rel. Humidity: 57%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
5 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
23°
Clear
as of 2:15 PM CST
Rel. Humidity: 67%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
6 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
25°
Partly Cloudy
as of 1:53 PM CST
Rel. Humidity: 45%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
8 MPH
320° Northwest
Cloud Level(s): Few at 2000ft, Scattered at 25000ft
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a high near 26. North northwest wind around 5 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 19. North wind around 5 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 30. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 16. Northwest wind around 5 mph, with gusts as high as 10 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 26.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 43.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 34.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 48.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 31.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 48.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 37.
20% chance of rain Thursday Thursday... A chance of rain. Mostly cloudy, with a high near 51.
Current Radar Image


Sun Almanac for Union, Illinois
Sunrise: 07:19 AM
Sunset: 4:34 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:05 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:13 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.