Island Lake, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Island Lake, IL in one place.
Sunny, with a high near 77.
Local Weather Overview
This forecast page for Island Lake, 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: May 27, 2026 11:47 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Island Lake, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 27, 2026 11:47 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Island Lake
Wednesday looks like the warmest upcoming period in Island Lake at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph ENE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 27, 2026 11:47 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 54.
Mostly sunny, with a high near 79.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 79.
Mostly clear, with a low around 55.
Sunny, with a high near 77.
Mostly clear, with a low around 55.
Sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Sunny
|
77°F |
5 to 15 mph
ENE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
54°F |
5 to 15 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
79°F |
5 mph
ESE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
56°F |
0 to 5 mph
NE
|
|
Monday
Jun 1
|
Mostly Sunny
|
79°F |
0 to 10 mph
NE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
55°F |
5 to 10 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
77°F |
5 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
5 to 10 mph
NNE
|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
5 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Island Lake.