Weather in Long Lake, IL
Long Lake, Saturday, 17 October, 06:18
Clear. Feels like 37°. High 53°, low 36°.
Monthly outlook for Long Lake, IL: average high 61.4°, average low 45.8°. That is 3° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 25 October (69.9°), the coolest 27 October (32.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 63.5° | 57.1° | +3.6° |
| 27 October – 5 November | 57.9° | 53.1° | +2.7° |
| 6 November – 15 November | at normal | 47.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (2 mi).
0
Long Lake, Sunday, 18 October
Clear. High 60°, low 44°.
0
Long Lake, Monday, 19 October
Overcast. High 63°, low 43°.
0
Long Lake, Tuesday, 20 October
Partly cloudy. High 64°, low 47°.
0Long Lake, Wednesday, 21 October
Clear. High 67°, low 49°.
0
Long Lake, Thursday, 22 October
Mostly clear. High 68°, low 49°.
0Long Lake, Friday, 23 October
Overcast. High 70°, low 52°.
0Long Lake, Saturday, 24 October
Overcast. High 67°, low 55°.
0Long Lake, Sunday, 25 October
Overcast. High 70°, low 57°.
0.34
Long Lake, Monday, 26 October
Rain. High 54°, low 41°.
0Long Lake, Tuesday, 27 October
Overcast. High 49°, low 32°.
0.83Long Lake, Wednesday, 28 October
Rain. High 51°, low 44°.
0.01Long Lake, Thursday, 29 October
Light rain. High 56°, low 44°.
0Long Lake, Friday, 30 October
Overcast. High 58°, low 41°.
0.77Long Lake, Saturday, 31 October
Rain. High 67°, low 51°.
0.04Long Lake, Sunday, 1 November
Light rain. High 66°, low 47°.
0.14
Long Lake, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Long Lake, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Long Lake, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Long Lake, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Long Lake, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Long Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Long Lake, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Long Lake, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Long Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Long Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Long Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Long Lake, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Long Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Long Lake, Sunday, 15 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 Lake, 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 Lake, 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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