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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: 8:38 pm CST Jan 8, 2026 Latitude: 39.1025416 Longitude: -88.3353213 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
90% chance of thunderstorms on Tonight Partly Sunny on Friday 30% chance of rain on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
Low: 48°F High: 45 °F High: 44°F High: 32°F High: 43°F High: 50°F High: 39°F High: 33°F
Low: 39°F Low: 22°F Low: 22°F Low: 32°F Low: 34°F Low: 23°F  
Thunderstorms Partly Sunny Rain Mostly Sunny Mostly Sunny Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
EFFINGHAM COUNTY MEMORIAL - (K1H2)
64°
Cloudy
Heavy Rain
as of 9:15 PM CST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 5 Miles
Pressure: 29.61 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 30 MPH
170° South
Cloud Level(s): Scattered at 1800ft, Broken at 2600ft, Solid Overcast at 3500ft
Current Conditions at
MATTOON - (KMTO)
64°
Mostly Cloudy
as of 9:25 PM CST
Rel. Humidity: 77%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.55 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 41 MPH
180° South
Cloud Level(s): Scattered at 2500ft, Broken at 4500ft, Broken at 6000ft
Current Conditions at
OLNEY-NOBLE AIRPORT - (KOLY)
64°
Cloudy
as of 9:15 PM CST
Rel. Humidity: 82%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: MVFR
Wind Data
22 MPH
Gust: 35 MPH
180° South
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
FLORA MUNICIPAL AIRPORT - (KFOA)
64°
Cloudy
Light Rain
as of 9:15 PM CST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.62 in.
Flight Rule: MVFR
Wind Data
22 MPH
180° South
Cloud Level(s): Solid Overcast at 3000ft
90% chance of thunderstorms Tonight Tonight... Rain and possibly a thunderstorm before 1am, then a chance of rain and thunderstorms between 1am and 3am, then a slight chance of rain after 3am. Low around 48. Breezy, with a south southwest wind 18 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Partly Sunny on Friday Friday... Partly sunny, with a temperature falling to around 45 by 5pm. West wind 13 to 18 mph becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 39. Light north wind.
30% chance of rain Saturday Saturday... A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 44. West northwest wind 5 to 15 mph, with gusts as high as 22 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 22. West northwest wind 10 to 16 mph, with gusts as high as 24 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 32. West northwest wind 8 to 17 mph, with gusts as high as 25 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 22. West northwest wind 5 to 7 mph becoming south southwest after midnight.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 43.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 32.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 50.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 39.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 23.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 33.
Current Radar Image


Sun Almanac for Island Grove, Illinois
Sunrise: 07:13 AM
Sunset: 4:48 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:51 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:23 PM
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