Island Grove, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy then Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Island Grove, IL in one place.
A slight chance of rain showers after 5pm. Mostly cloudy, with a high near 77. East wind around 3 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Island Grove, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 23, 2026 9:58 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Island Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 23, 2026 9:58 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Island Grove
Monday looks like the warmest upcoming period in Island Grove at 94 degrees F.
Friday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Monday at about 6 to 12 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 9:58 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers. Mostly cloudy, with a low around 63. Southeast wind around 2 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm. Partly sunny, with a high near 82. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Partly cloudy, with a low around 69. South wind 1 to 5 mph.
Mostly sunny, with a high near 90. West wind around 3 mph.
Partly cloudy, with a low around 72. South southwest wind 2 to 6 mph.
Mostly sunny, with a high near 94.
Mostly clear, with a low around 74.
Sunny, with a high near 91.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 87.
Mostly clear, with a low around 68.
Sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Cloudy then Slight Chance Rain Showers
|
77°F |
3 mph
E
|
|
Friday Night
Jul 24
|
Chance Rain Showers
|
63°F |
2 mph
SE
|
|
Saturday
Jul 25
|
Chance Showers And Thunderstorms
|
82°F |
3 to 7 mph
S
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
69°F |
1 to 5 mph
S
|
|
Sunday
Jul 26
|
Mostly Sunny
|
90°F |
3 mph
W
|
|
Sunday Night
Jul 26
|
Partly Cloudy
|
72°F |
2 to 6 mph
SSW
|
|
Monday
Jul 27
|
Mostly Sunny
|
94°F |
6 to 12 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
74°F |
6 to 9 mph
WSW
|
|
Tuesday
Jul 28
|
Sunny
|
91°F |
9 mph
NW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
70°F |
5 to 8 mph
NNE
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
87°F |
7 mph
NE
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
68°F |
2 to 7 mph
ENE
|
|
Thursday
Jul 30
|
Sunny
|
87°F |
3 to 7 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Island Grove.