Weather in Lake Bluff, IL
Lake Bluff, Saturday, 24 October, 04:07
Clear. Feels like 50°. High 68°, low 49°.
Monthly outlook for Lake Bluff, IL: average high 58.1°, average low 47.9°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 25 October (72°), the coolest 6 November (27.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 64.3° | 53.9° | +5.8° |
| 3 November – 12 November | 47.7° | 49.2° | -0.9° |
| 13 November – 22 November | at normal | 45° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park City (5 mi).
0
Lake Bluff, Sunday, 25 October
Overcast. High 72°, low 47°.
0Lake Bluff, Monday, 26 October
Overcast. High 61°, low 51°.
0Lake Bluff, Tuesday, 27 October
Overcast. High 60°, low 52°.
0.02
Lake Bluff, Wednesday, 28 October
Light rain. High 69°, low 53°.
0.11Lake Bluff, Thursday, 29 October
Light rain. High 68°, low 58°.
0.04Lake Bluff, Friday, 30 October
Light rain. High 62°, low 57°.
0.44Lake Bluff, Saturday, 31 October
Rain. High 63°, low 58°.
0.2Lake Bluff, Sunday, 1 November
Light rain. High 64°, low 57°.
0Lake Bluff, Monday, 2 November
Overcast. High 57°, low 54°.
0.28Lake Bluff, Tuesday, 3 November
Light rain. High 54°, low 52°.
0Lake Bluff, Wednesday, 4 November
Overcast. High 54°, low 48°.
0
Lake Bluff, Thursday, 5 November
Clear. High 46°, low 34°.
0Lake Bluff, Friday, 6 November
Clear. High 39°, low 28°.
0Lake Bluff, Saturday, 7 November
Clear. High 42°, low 29°.
0.01Lake Bluff, Sunday, 8 November
Light rain. High 51°, low 40°.
0.12
Lake Bluff, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Lake Bluff, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Lake Bluff, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06
Lake Bluff, Thursday, 12 November
Climate normal for this date — 60-year average.
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.
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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