Weather in Lake Bluff, IL
Lake Bluff, Thursday, 29 October, 03:22
Mostly clear. Feels like 65°. High 69°, low 55°.
Monthly outlook for Lake Bluff, IL: average high 55.2°, average low 47.7°. That is 2.7° above the climate normal for October. Precipitation is expected on 10 days (about 3.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 29 October (69°), the coolest 13 November (37.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 60.3° | 52° | +4.6° |
| 8 November – 17 November | 46.6° | 46.7° | -0.1° |
| 18 November – 27 November | at normal | 43.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park City (5 mi).
0.02
Lake Bluff, Friday, 30 October
Light rain. High 62°, low 49°.
0.37Lake Bluff, Saturday, 31 October
Rain. High 55°, low 51°.
0
Lake Bluff, Sunday, 1 November
Overcast. High 63°, low 48°.
0.22Lake Bluff, Monday, 2 November
Rain. High 62°, low 57°.
1.23Lake Bluff, Tuesday, 3 November
Heavy rain. High 63°, low 58°.
0.49Lake Bluff, Wednesday, 4 November
Rain. High 59°, low 58°.
0.36Lake Bluff, Thursday, 5 November
Rain. High 64°, low 58°.
0.04Lake Bluff, Friday, 6 November
Light rain. High 57°, low 45°.
0Lake Bluff, Saturday, 7 November
Overcast. High 49°, low 45°.
0Lake Bluff, Sunday, 8 November
Overcast. High 49°, low 43°.
0.18Lake Bluff, Monday, 9 November
Light rain. High 51°, low 42°.
0.65Lake Bluff, Tuesday, 10 November
Rain. High 46°, low 38°.
0.05Lake Bluff, Wednesday, 11 November
Light rain. High 45°, low 39°.
0.06Lake Bluff, Thursday, 12 November
Light rain. High 44°, low 40°.
0
Lake Bluff, Friday, 13 November
Partly cloudy. High 44°, low 37°.
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.
0.21Lake Bluff, Friday, 27 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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