url:
Grant Park, Illinois Weather Forecast
Grant Park, 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 Grant Park, Illinois : Winnebago County
Issued: 2:51 am CST Dec 15, 2025 Latitude: 42.2275212 Longitude: -89.0912163 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Cloudy on Overnight Mostly Cloudy on Monday Morning Fog on Tuesday Mostly Sunny on Wednesday 70% chance of rain on Thursday Partly Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday
Low: 0 °F High: 23°F High: 34°F High: 37°F High: 43°F High: 28°F High: 40°F High: 32°F
Low: 12°F Low: 26°F Low: 32°F Low: 7 °F Low: 20°F Low: 19°F  
Mostly Cloudy Mostly Cloudy Morning Fog Mostly Sunny Rain Partly Sunny Mostly Cloudy Mostly Sunny
-
Current Conditions at
ROCKFORD - (KRFD)
Feels like -11°F
Cloudy
as of 1:54 AM CST
Rel. Humidity: 65%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
9 MPH
170° South
Cloud Level(s): Few at 8000ft, Scattered at 16000ft, Solid Overcast at 25000ft
Current Conditions at
ALBERTUS AIRPORT - (KFEP)
Feels like -11°F
Clear
as of 2:35 AM CST
Rel. Humidity: 71%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
13 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
Clear
as of 1:56 AM CST
Rel. Humidity: 70%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
7 MPH
Cloud Level(s): Clear
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 0. Wind chill values as low as -16. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 23. Wind chill values as low as -12. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

Patchy Fog on Monday Night Monday Night... Patchy fog after midnight. Otherwise, partly cloudy, with a low around 12. West southwest wind around 5 mph becoming calm in the evening.

Morning Fog on Tuesday Tuesday... Patchy fog before 9am. Otherwise, partly sunny, with a high near 34. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 26. Southwest wind 5 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 37.

60% chance of rain Wednesday Night Wednesday Night... Rain likely after midnight. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 60%.

70% chance of rain Thursday Thursday... Rain likely before noon. Mostly cloudy, with a high near 43. Breezy.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 7. Blustery.

Partly Sunny on Friday Friday... Partly sunny, with a high near 28.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 40.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 19.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 32.

Current Radar Image


Sun Almanac for Grant Park, Illinois
Sunrise: 07:18 AM
Sunset: 4:25 PM
Civil Sunrise:06:47 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:06 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.