Weather in Lake Bluff, IL
Lake Bluff, Wednesday, 28 October, 01:54
Partly cloudy. Feels like 54°. High 71°, low 55°.
Monthly outlook for Lake Bluff, IL: average high 55.6°, average low 47.2°. That is 2.7° above the climate normal for October. Precipitation is expected on 9 days (about 3.5 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (71°), the coolest 12 November (31.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 60.4° | 52.4° | +4.4° |
| 7 November – 16 November | 47.7° | 47.1° | +0.4° |
| 17 November – 26 November | at normal | 43.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park City (5 mi).
0.03
Lake Bluff, Thursday, 29 October
Light rain. High 66°, low 51°.
0
Lake Bluff, Friday, 30 October
Overcast. High 60°, low 44°.
0.55Lake Bluff, Saturday, 31 October
Rain. High 61°, low 53°.
0Lake Bluff, Sunday, 1 November
Overcast. High 63°, low 50°.
0.04Lake Bluff, Monday, 2 November
Light rain. High 62°, low 56°.
1.07Lake Bluff, Tuesday, 3 November
Rain. High 57°, low 54°.
0.2Lake Bluff, Wednesday, 4 November
Light rain. High 56°, low 52°.
0.04Lake Bluff, Thursday, 5 November
Light rain. High 54°, low 51°.
0.05Lake Bluff, Friday, 6 November
Light rain. High 54°, low 49°.
0.39Lake Bluff, Saturday, 7 November
Rain. High 50°, low 41°.
0Lake Bluff, Sunday, 8 November
Overcast. High 46°, low 40°.
0
Lake Bluff, Monday, 9 November
Partly cloudy. High 51°, low 39°.
0.2Lake Bluff, Tuesday, 10 November
Light rain. High 52°, low 49°.
0.91Lake Bluff, Wednesday, 11 November
Rain. High 49°, low 39°.
0
Lake Bluff, Thursday, 12 November
Light snow. High 39°, low 31°.
0.05Lake Bluff, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Lake Bluff, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Lake Bluff, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05
Lake Bluff, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Lake Bluff, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Lake Bluff, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Lake Bluff, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Lake Bluff, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Lake Bluff, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Lake Bluff, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Lake Bluff, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Lake Bluff, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09
Lake Bluff, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Lake Bluff, Thursday, 26 November
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 Lake Bluff, 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 Lake Bluff, 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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