Weather in Long Grove, IL
Long Grove, Saturday, 31 October, 11:43
Overcast. Feels like 58°. High 59°, low 52°.
Monthly outlook for Long Grove, IL: average high 56.8°, average low 47.2°. That is 4.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 3 November (68.2°), the coolest 15 November (37.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 59° | 51.2° | +4.4° |
| 10 November – 19 November | 53.1° | 46° | +3.9° |
| 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 (10 mi).
0Long Grove, Sunday, 1 November
Overcast. High 65°, low 56°.
0.07
Long Grove, Monday, 2 November
Light rain. High 61°, low 51°.
0.18Long Grove, Tuesday, 3 November
Rain. High 68°, low 59°.
0.56Long Grove, Wednesday, 4 November
Rain. High 65°, low 54°.
0.49Long Grove, Thursday, 5 November
Rain. High 58°, low 49°.
0Long Grove, Friday, 6 November
Overcast. High 54°, low 48°.
0
Long Grove, Saturday, 7 November
Clear. High 55°, low 42°.
0
Long Grove, Sunday, 8 November
Partly cloudy. High 51°, low 39°.
0Long Grove, Monday, 9 November
Overcast. High 54°, low 47°.
0Long Grove, Tuesday, 10 November
Clear. High 59°, low 44°.
0.01Long Grove, Wednesday, 11 November
Light rain. High 57°, low 50°.
0.05Long Grove, Thursday, 12 November
Light rain. High 50°, low 42°.
0Long Grove, Friday, 13 November
Overcast. High 51°, low 40°.
0Long Grove, Saturday, 14 November
Clear. High 55°, low 46°.
0Long Grove, Sunday, 15 November
Partly cloudy. High 46°, low 37°.
0.05
Long Grove, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Long Grove, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Long Grove, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Long Grove, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Long Grove, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Long Grove, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Long Grove, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Long Grove, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Long Grove, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09
Long Grove, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Long Grove, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Long Grove, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Long Grove, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Long 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 Long 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 Long 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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