Weather in Long Grove, IL
Long Grove, Thursday, 29 October, 10:15
Overcast. Feels like 63°. High 68°, low 54°.
Monthly outlook for Long Grove, IL: average high 58.9°, average low 48.1°. That is 4.7° above the climate normal for October. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 4 November (70.3°), the coolest 7 November (33.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 61.3° | 52.1° | +5.1° |
| 8 November – 17 November | 54.8° | 46.8° | +4.4° |
| 18 November – 27 November | at normal | 43.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (10 mi).
0.04
Long Grove, Friday, 30 October
Light rain. High 65°, low 47°.
0.74Long Grove, Saturday, 31 October
Rain. High 57°, low 50°.
0.06Long Grove, Sunday, 1 November
Light rain. High 59°, low 51°.
0.05Long Grove, Monday, 2 November
Light rain. High 60°, low 53°.
0.09Long Grove, Tuesday, 3 November
Light rain. High 68°, low 59°.
0Long Grove, Wednesday, 4 November
Overcast. High 70°, low 64°.
0.13Long Grove, Thursday, 5 November
Light rain. High 65°, low 54°.
0.11Long Grove, Friday, 6 November
Light rain. High 52°, low 38°.
0
Long Grove, Saturday, 7 November
Mostly clear. High 49°, low 34°.
0Long Grove, Sunday, 8 November
Overcast. High 51°, low 39°.
0Long Grove, Monday, 9 November
Overcast. High 49°, low 44°.
0Long Grove, Tuesday, 10 November
Overcast. High 54°, low 43°.
0
Long Grove, Wednesday, 11 November
Clear. High 58°, low 42°.
0Long Grove, Thursday, 12 November
Overcast. High 58°, low 45°.
0Long Grove, Friday, 13 November
Overcast. High 59°, low 52°.
0.07
Long 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.
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.
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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