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

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: 12:41 pm CST Jan 30, 2026 Latitude: 41.4969757 Longitude: -88.0233891 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
80% chance of snow on This Afternoon 80% chance of snow on Tonight 20% chance of snow on Saturday Mostly Sunny on Sunday 20% chance of snow on Monday 20% chance of snow on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
High: 19°F Low: 7 °F High: 24°F High: 25°F High: 31°F High: 29°F High: 27°F High: 29°F
Low: 6 °F Low: 17°F Low: 18°F Low: 18°F Low: 12°F  
Snow Snow Snow Mostly Sunny Snow Snow Mostly Cloudy Partly Sunny
-
Current Conditions at
JOLIET - (KJOT)
19°
Cloudy
Light Snow
as of 12:55 PM CST
Rel. Humidity: 73%
Dew Point: 12°F
Visibility: 7 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
7 MPH
0° North
Cloud Level(s): Scattered at 1900ft, Broken at 3200ft, Solid Overcast at 4900ft
Current Conditions at
ROMEOVILLE WFO - (KLOT)
16°
Cloudy
Light Snow Haze
as of 12:45 PM CST
Rel. Humidity: 78%
Dew Point: 10°F
Visibility: 2 Miles
Pressure: 30.37 in.
Flight Rule: IFR
Wind Data
8 MPH
350° North
Cloud Level(s): Solid Overcast at 3000ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
18°
Cloudy
Light Snow
as of 12:55 PM CST
Rel. Humidity: 72%
Dew Point: 10°F
Visibility: 3 Miles
Pressure: 30.37 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Scattered at 1800ft, Solid Overcast at 2500ft
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
19°
Mostly Cloudy
Light Snow
as of 12:53 PM CST
Rel. Humidity: 67%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 2500ft, Broken at 4300ft
80% chance of snow This Afternoon This Afternoon... Snow showers. High near 19. Northeast wind around 10 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

80% chance of snow Tonight Tonight... Snow showers, mainly before 8pm. Low around 7. Wind chill values as low as -9. North northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

20% chance of snow Saturday Saturday... Isolated snow showers between 9am and 3pm. Partly sunny, with a high near 24. Wind chill values as low as -8. North northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 6. Wind chill values as low as -1. North northwest wind around 5 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 25. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

40% chance of snow Sunday Night Sunday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 17.

20% chance of snow Monday Monday... A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 18.

20% chance of snow Tuesday Tuesday... A chance of snow after noon. Mostly cloudy, with a high near 29.

20% chance of snow Tuesday Night Tuesday Night... A chance of snow before midnight. Mostly cloudy, with a low around 18.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 27.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 12.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 29.

Current Radar Image


Sun Almanac for Union, Illinois
Sunrise: 07:05 AM
Sunset: 5:05 PM
Civil Sunrise:06:36 AM
Civil Sunset: 5:35 PM
Nautical Sunrise: 06:03 AM
Nautical Sunset: 6:08 PM
Astro Sunrise: 05:30 AM
Astro Sunset: 6:41 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.