Weather in Long Grove, IL
Long Grove, Monday, 26 October, 13:18
Mostly clear. Feels like 60°. High 62°, low 49°.
Monthly outlook for Long Grove, IL: average high 60.4°, average low 47.5°. That is 4.7° 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 28 October (69.1°), the coolest 7 November (37.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 62.1° | 53.1° | +5° |
| 5 November – 14 November | 57.4° | 48.2° | +5.1° |
| 15 November – 24 November | at normal | 44.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (10 mi).
0
Long Grove, Tuesday, 27 October
Overcast. High 69°, low 50°.
0Long Grove, Wednesday, 28 October
Mostly clear. High 69°, low 55°.
0.1
Long Grove, Thursday, 29 October
Rain. High 68°, low 55°.
0Long Grove, Friday, 30 October
Overcast. High 65°, low 46°.
0.1Long Grove, Saturday, 31 October
Light rain. High 64°, low 54°.
0.3Long Grove, Sunday, 1 November
Rain. High 57°, low 53°.
0.01Long Grove, Monday, 2 November
Light rain. High 58°, low 53°.
0.72Long Grove, Tuesday, 3 November
Rain. High 60°, low 45°.
0.19Long Grove, Wednesday, 4 November
Rain. High 51°, low 44°.
0Long Grove, Thursday, 5 November
Overcast. High 61°, low 43°.
0.02Long Grove, Friday, 6 November
Light rain. High 62°, low 43°.
0
Long Grove, Saturday, 7 November
Partly cloudy. High 49°, low 38°.
0Long Grove, Sunday, 8 November
Partly cloudy. High 55°, low 41°.
0Long Grove, Monday, 9 November
Overcast. High 58°, low 44°.
0Long Grove, Tuesday, 10 November
Overcast. High 59°, low 47°.
0.08
Long Grove, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Long Grove, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Long Grove, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Long Grove, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Long Grove, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Long 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.
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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