Diamond Lake, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Diamond Lake, IL in one place.
Mostly sunny. High near 50, with temperatures falling to around 45 in the afternoon. West wind around 5 mph, with gusts as high as 15 mph.
Local Weather Overview
This forecast page for Diamond 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: Nov 6, 2026 9:32 AM CST.
The active forecast window currently covers Nov 7 to Nov 12, 2026 for Diamond Lake, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 9:32 AM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Diamond Lake
Monday looks like the warmest upcoming period in Diamond Lake at 62 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Saturday Night at about 5 to 10 mph WSW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 6, 2026 9:32 AM CST
- Coverage
- 7 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 36. West southwest wind 5 to 10 mph.
Sunny, with a high near 59. West wind around 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 36.
Sunny, with a high near 62.
Mostly clear, with a low around 40.
Sunny, with a high near 61.
Partly cloudy, with a low around 37.
Mostly sunny, with a high near 57.
Mostly cloudy, with a low around 39.
A slight chance of rain before noon. Partly sunny, with a high near 53.
Partly cloudy, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Mostly Sunny
|
50°F |
5 mph
W
|
|
Saturday Night
Nov 7
|
Partly Cloudy
|
36°F |
5 to 10 mph
WSW
|
|
Sunday
Nov 8
|
Sunny
|
59°F |
10 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
36°F |
0 to 5 mph
W
|
|
Monday
Nov 9
|
Sunny
|
62°F |
0 to 10 mph
SW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
40°F |
5 to 10 mph
WSW
|
|
Tuesday
Nov 10
|
Sunny
|
61°F |
5 mph
WNW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
37°F |
0 mph
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
57°F |
0 to 5 mph
NNW
|
|
Wednesday Night
Nov 11
|
Mostly Cloudy
|
39°F |
0 to 5 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Rain then Partly Sunny
|
53°F |
5 mph
NNW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
37°F |
5 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Diamond Lake.