Weather in Diamond Lake, IL
Diamond Lake, Friday, 13 November, 05:50
Overcast. Feels like 26°. High 43°, low 34°.
Monthly outlook for Diamond Lake, IL: average high 47.6°, average low 34.7°. That is 2.1° above the climate normal for November. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 22 November (61.9°), the coolest 25 November (21.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 52.3° | 45° | +4.1° |
| 23 November – 2 December | 39.6° | 40.8° | -0.6° |
| 3 December – 12 December | at normal | 36.2° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Park City (10 mi).
0
Diamond Lake, Saturday, 14 November
Clear. High 47°, low 32°.
0Diamond Lake, Sunday, 15 November
Clear. High 47°, low 31°.
0Diamond Lake, Monday, 16 November
Clear. High 49°, low 31°.
0
Diamond Lake, Tuesday, 17 November
Partly cloudy. High 51°, low 35°.
0Diamond Lake, Wednesday, 18 November
Overcast. High 53°, low 35°.
0Diamond Lake, Thursday, 19 November
Overcast. High 62°, low 48°.
0Diamond Lake, Friday, 20 November
Overcast. High 52°, low 41°.
0.19
Diamond Lake, Saturday, 21 November
Light rain. High 57°, low 46°.
0.01Diamond Lake, Sunday, 22 November
Light rain. High 62°, low 53°.
0.66Diamond Lake, Monday, 23 November
Rain. High 58°, low 39°.
0.27
Diamond Lake, Tuesday, 24 November
Snow. High 35°, low 25°.
0Diamond Lake, Wednesday, 25 November
Clear. High 30°, low 21°.
0Diamond Lake, Thursday, 26 November
Clear. High 34°, low 24°.
0Diamond Lake, Friday, 27 November
Partly cloudy. High 38°, low 27°.
0Diamond Lake, Saturday, 28 November
Overcast. High 43°, low 33°.
0.07
Diamond Lake, Sunday, 29 November
Climate normal for this date — 60-year average.
0.08Diamond Lake, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Diamond Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Diamond Lake, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Diamond Lake, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Diamond Lake, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Diamond Lake, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Diamond Lake, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Diamond Lake, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Diamond Lake, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Diamond Lake, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Diamond Lake, Thursday, 10 December
Climate normal for this date — 60-year average.
0.11Diamond Lake, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Diamond Lake, Saturday, 12 December
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Diamond Lake, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Diamond Lake, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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