Weather in Buffalo Grove, IL
Buffalo Grove, Saturday, 31 October, 22:09
Clear. Feels like 53°. High 61°, low 52°.
Monthly outlook for Buffalo Grove, IL: average high 55.5°, average low 46.8°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 3 November (70.6°), the coolest 11 November (37.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 58.5° | 51.2° | +4° |
| 10 November – 19 November | 50.5° | 46° | +2.5° |
| 20 November – 29 November | at normal | 42.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (8 mi).
0
Buffalo Grove, Sunday, 1 November
Overcast. High 68°, low 54°.
0.13
Buffalo Grove, Monday, 2 November
Light rain. High 63°, low 56°.
0.11Buffalo Grove, Tuesday, 3 November
Light rain. High 71°, low 61°.
0.35Buffalo Grove, Wednesday, 4 November
Rain. High 63°, low 56°.
0.03Buffalo Grove, Thursday, 5 November
Light rain. High 55°, low 51°.
0.1Buffalo Grove, Friday, 6 November
Light rain. High 50°, low 46°.
0
Buffalo Grove, Saturday, 7 November
Partly cloudy. High 55°, low 44°.
0.01Buffalo Grove, Sunday, 8 November
Light rain. High 49°, low 42°.
0
Buffalo Grove, Monday, 9 November
Mostly clear. High 49°, low 40°.
0
Buffalo Grove, Tuesday, 10 November
Clear. High 48°, low 39°.
0Buffalo Grove, Wednesday, 11 November
Clear. High 49°, low 37°.
0Buffalo Grove, Thursday, 12 November
Mostly clear. High 50°, low 42°.
0.03Buffalo Grove, Friday, 13 November
Light rain. High 58°, low 47°.
0Buffalo Grove, Saturday, 14 November
Light rain. High 49°, low 42°.
0Buffalo Grove, Sunday, 15 November
Overcast. High 49°, low 39°.
0.05Buffalo Grove, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Buffalo Grove, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Buffalo Grove, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Buffalo Grove, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Buffalo Grove, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Buffalo Grove, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Buffalo Grove, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Buffalo Grove, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Buffalo Grove, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09
Buffalo Grove, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Buffalo Grove, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Buffalo Grove, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Buffalo Grove, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Buffalo Grove, Sunday, 29 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 Buffalo Grove, 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 Buffalo Grove, 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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