Weather in Long Grove, IL
Long Grove, Sunday, 15 November, 01:31
Mostly clear. Feels like 31°. High 51°, low 31°.
Monthly outlook for Long Grove, IL: average high 48°, average low 35°. That is 2.6° above the climate normal for November. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 November (61.1°), the coolest 24 November (26.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 50.8° | 44.6° | +3.5° |
| 25 November – 4 December | 43.2° | 40.1° | +1.7° |
| 5 December – 14 December | at normal | 36° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (10 mi).
0
Long Grove, Monday, 16 November
Clear. High 51°, low 33°.
0Long Grove, Tuesday, 17 November
Clear. High 53°, low 36°.
0
Long Grove, Wednesday, 18 November
Overcast. High 54°, low 39°.
0Long Grove, Thursday, 19 November
Overcast. High 58°, low 47°.
0Long Grove, Friday, 20 November
Overcast. High 56°, low 36°.
0Long Grove, Saturday, 21 November
Overcast. High 61°, low 53°.
0.32
Long Grove, Sunday, 22 November
Snow. High 53°, low 31°.
0Long Grove, Monday, 23 November
Overcast. High 34°, low 27°.
0.01Long Grove, Tuesday, 24 November
Light snow. High 38°, low 27°.
0Long Grove, Wednesday, 25 November
Overcast. High 38°, low 29°.
0Long Grove, Thursday, 26 November
Overcast. High 43°, low 31°.
0.7
Long Grove, Friday, 27 November
Rain. High 49°, low 39°.
0.5Long Grove, Saturday, 28 November
Snow. High 49°, low 37°.
0.03Long Grove, Sunday, 29 November
Light snow. High 39°, low 34°.
0
Long Grove, Monday, 30 November
Partly cloudy. High 41°, low 31°.
0.15
Long Grove, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Long Grove, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Long Grove, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Long Grove, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Long Grove, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Long Grove, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Long Grove, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Long Grove, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Long Grove, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Long Grove, Thursday, 10 December
Climate normal for this date — 60-year average.
0.11Long Grove, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Long Grove, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Long Grove, Sunday, 13 December
Climate normal for this date — 60-year average.
0.11Long Grove, Monday, 14 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 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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