Weather in Buffalo Grove, IL
Buffalo Grove, Tuesday, 10 November, 00:31
Clear. Feels like 48°. High 63°, low 43°.
Monthly outlook for Buffalo Grove, IL: average high 49.1°, average low 39.5°. That is 2.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 10 November (62.5°), the coolest 14 November (29.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 November – 19 November | 50° | 46° | +2.2° |
| 20 November – 29 November | 47.7° | 42.3° | +3° |
| 30 November – 9 December | at normal | 37.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (8 mi).
0.02
Buffalo Grove, Wednesday, 11 November
Light rain. High 60°, low 42°.
0
Buffalo Grove, Thursday, 12 November
Overcast. High 43°, low 35°.
0Buffalo Grove, Friday, 13 November
Overcast. High 42°, low 33°.
0Buffalo Grove, Saturday, 14 November
Overcast. High 43°, low 29°.
0
Buffalo Grove, Sunday, 15 November
Mostly clear. High 46°, low 31°.
0.01Buffalo Grove, Monday, 16 November
Light rain. High 47°, low 39°.
0
Buffalo Grove, Tuesday, 17 November
Clear. High 49°, low 39°.
0Buffalo Grove, Wednesday, 18 November
Clear. High 52°, low 39°.
0Buffalo Grove, Thursday, 19 November
Overcast. High 56°, low 44°.
0.22Buffalo Grove, Friday, 20 November
Rain. High 52°, low 49°.
0.12Buffalo Grove, Saturday, 21 November
Light rain. High 48°, low 43°.
0Buffalo Grove, Sunday, 22 November
Overcast. High 47°, low 43°.
0.17Buffalo Grove, Monday, 23 November
Light rain. High 54°, low 46°.
0Buffalo Grove, Tuesday, 24 November
Light rain. High 46°, low 42°.
0Buffalo Grove, Wednesday, 25 November
Mostly clear. High 38°, low 32°.
0.12
Buffalo 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.
0.07
Buffalo 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.
0.08Buffalo Grove, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Buffalo Grove, Wednesday, 9 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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