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Island Grove, Illinois Weather Forecast
Island Grove, Illinois Weather
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Weather Forecast for Island Grove, Illinois : Jasper County
Issued: 3:31 pm CST Nov 29, 2025 Latitude: 39.1025416 Longitude: -88.3353213 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
100% chance of rain & snow on This Afternoon 90% chance of rain & snow on Tonight Cloudy on Sunday 30% chance of snow on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday Partly Sunny on Friday Partly Sunny on Saturday
High: 36°F Low: 25°F High: 27°F High: 31°F High: 27°F High: 34°F High: 26°F High: 33°F High: 37°F
Low: 19°F Low: 20°F Low: 14°F Low: 17°F Low: 13°F Low: 20°F  
Rain & Snow Rain & Snow Cloudy Snow Partly Sunny Mostly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
EFFINGHAM COUNTY MEMORIAL - (K1H2)
32°
Feels like 23°F
Cloudy
Light Snow
as of 4:15 PM CST
Rel. Humidity: 100%
Dew Point: 32°F
Visibility: 1 1/4 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
12 MPH
Gust: 16 MPH
110° East
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
MATTOON - (KMTO)
32°
Feels like 20°F
Cloudy
Light Snow Mist
as of 4:31 PM CST
Rel. Humidity: 92%
Dew Point: 30°F
Visibility: 1 1/2 Miles
Pressure: 29.97 in.
Flight Rule: IFR
Wind Data
17 MPH
Gust: 32 MPH
150° Southeast
Cloud Level(s): Broken at 700ft, Solid Overcast at 1200ft
Current Conditions at
OLNEY-NOBLE AIRPORT - (KOLY)
34°
Cloudy
as of 4:10 PM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 1 3/4 Miles
Pressure: 30.05 in.
Flight Rule: IFR
Wind Data
7 MPH
150° Southeast
Cloud Level(s): Scattered at 1200ft, Broken at 1700ft, Solid Overcast at 2100ft
Current Conditions at
FLORA MUNICIPAL AIRPORT - (KFOA)
34°
Feels like 25°F
Cloudy
Light Snow Mist
as of 4:15 PM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 7 Miles
Pressure: 30.03 in.
Flight Rule: MVFR
Wind Data
10 MPH
140° Southeast
Cloud Level(s): Scattered at 1000ft, Broken at 2300ft, Solid Overcast at 3900ft
100% chance of rain & snow This Afternoon This Afternoon... Snow before 5pm, then snow, possibly mixed with rain. Some thunder is also possible. High near 36. Southeast wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.
90% chance of rain & snow Tonight Tonight... Rain and snow before 9pm, then a chance of rain between 9pm and 1am. Low around 25. Breezy, with a south southeast wind 18 to 22 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Cloudy on Sunday Sunday... Cloudy, with a high near 27. Breezy, with a west northwest wind 11 to 21 mph, with gusts as high as 30 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 16 mph.
30% chance of snow Monday Monday... A 30 percent chance of snow after noon. Cloudy, with a high near 31. Southeast wind around 5 mph becoming calm in the afternoon.
80% chance of snow Monday Night Monday Night... Snow, mainly before midnight. Low around 20. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 80%.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 27. North northwest wind 3 to 7 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 14.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 17.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 26.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 13.
Partly Sunny on Friday Friday... Partly sunny, with a high near 33.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 37.
Current Radar Image


Sun Almanac for Island Grove, Illinois
Sunrise: 06:52 AM
Sunset: 4:32 PM
Civil Sunrise:06:23 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 05:50 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:17 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.