Weather in Lake Bluff, IL
Lake Bluff, Sunday, 25 October, 11:18
Clear. Feels like 66°. High 69°, low 51°.
Monthly outlook for Lake Bluff, IL: average high 60.9°, average low 50.9°. That is 4.8° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 25 October (69.5°), the coolest 9 November (40.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 65.3° | 53.5° | +6.6° |
| 4 November – 13 November | 53.6° | 48.6° | +2.8° |
| 14 November – 23 November | at normal | 44.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park City (5 mi).
0
Lake Bluff, Monday, 26 October
Overcast. High 66°, low 50°.
0
Lake Bluff, Tuesday, 27 October
Light rain. High 61°, low 51°.
0Lake Bluff, Wednesday, 28 October
Light rain. High 69°, low 53°.
0.01Lake Bluff, Thursday, 29 October
Light rain. High 69°, low 57°.
0
Lake Bluff, Friday, 30 October
Partly cloudy. High 63°, low 48°.
0.08Lake Bluff, Saturday, 31 October
Light rain. High 65°, low 54°.
0.31Lake Bluff, Sunday, 1 November
Light rain. High 59°, low 57°.
0.01Lake Bluff, Monday, 2 November
Light rain. High 64°, low 58°.
0.07Lake Bluff, Tuesday, 3 November
Light rain. High 67°, low 58°.
0Lake Bluff, Wednesday, 4 November
Partly cloudy. High 55°, low 51°.
0Lake Bluff, Thursday, 5 November
Overcast. High 53°, low 47°.
0Lake Bluff, Friday, 6 November
Overcast. High 54°, low 45°.
0Lake Bluff, Saturday, 7 November
Overcast. High 53°, low 43°.
0.27Lake Bluff, Sunday, 8 November
Rain. High 56°, low 51°.
0.1Lake Bluff, Monday, 9 November
Light rain. High 50°, low 41°.
0.11
Lake 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.
0.06Lake 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.
0.08Lake Bluff, Monday, 23 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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