Weather in Buffalo Grove, IL
Buffalo Grove, Sunday, 8 November, 04:26
Mostly clear. Feels like 36°. High 61°, low 40°.
Monthly outlook for Buffalo Grove, IL: average high 53°, average low 41.6°. That is 4° above the climate normal for November. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 8 November (61.1°), the coolest 14 November (29.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 51.9° | 46.8° | +2.8° |
| 18 November – 27 November | 54.9° | 43.4° | +6.3° |
| 28 November – 7 December | at normal | 38.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (8 mi).
0
Buffalo Grove, Monday, 9 November
Partly cloudy. High 58°, low 36°.
0
Buffalo Grove, Tuesday, 10 November
Clear. High 59°, low 42°.
0.46
Buffalo Grove, Wednesday, 11 November
Rain. High 51°, low 41°.
0
Buffalo Grove, Thursday, 12 November
Overcast. High 43°, low 35°.
0Buffalo Grove, Friday, 13 November
Overcast. High 41°, low 32°.
0
Buffalo Grove, Saturday, 14 November
Mostly clear. High 46°, low 30°.
0Buffalo Grove, Sunday, 15 November
Overcast. High 53°, low 36°.
0Buffalo Grove, Monday, 16 November
Clear. High 52°, low 41°.
0Buffalo Grove, Tuesday, 17 November
Overcast. High 55°, low 43°.
0.34Buffalo Grove, Wednesday, 18 November
Rain. High 58°, low 51°.
0.19Buffalo Grove, Thursday, 19 November
Light rain. High 61°, low 56°.
0.31Buffalo Grove, Friday, 20 November
Light rain. High 61°, low 57°.
0Buffalo Grove, Saturday, 21 November
Overcast. High 52°, low 42°.
0Buffalo Grove, Sunday, 22 November
Clear. High 49°, low 37°.
0.29Buffalo Grove, Monday, 23 November
Rain. High 49°, low 45°.
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.
0.07Buffalo Grove, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Buffalo Grove, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Buffalo Grove, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Buffalo Grove, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Buffalo Grove, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Buffalo Grove, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Buffalo Grove, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Buffalo Grove, Monday, 7 December
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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