Weather in Blue Island, IL
Blue Island, Sunday, 8 November, 21:20
Clear. Feels like 45°. High 60°, low 39°.
Monthly outlook for Blue Island, IL: average high 52°, average low 39.4°. That is 2.5° above the climate normal for November. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 23 November (62°), the coolest 14 November (30.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 51.8° | 48.5° | +1.8° |
| 18 November – 27 November | 52.4° | 44.9° | +4.2° |
| 28 November – 7 December | at normal | 39.5° | — |
November records over 66 years
0
Blue Island, Monday, 9 November
Partly cloudy. High 60°, low 39°.
0
Blue Island, Tuesday, 10 November
Clear. High 60°, low 43°.
0.01
Blue Island, Wednesday, 11 November
Light rain. High 56°, low 40°.
0.13Blue Island, Thursday, 12 November
Light rain. High 44°, low 36°.
0.26
Blue Island, Friday, 13 November
Snow. High 41°, low 34°.
0Blue Island, Saturday, 14 November
Clear. High 44°, low 30°.
0Blue Island, Sunday, 15 November
Partly cloudy. High 48°, low 35°.
0
Blue Island, Monday, 16 November
Overcast. High 50°, low 38°.
0Blue Island, Tuesday, 17 November
Partly cloudy. High 54°, low 39°.
0.19Blue Island, Wednesday, 18 November
Light rain. High 52°, low 46°.
0Blue Island, Thursday, 19 November
Clear. High 53°, low 44°.
0Blue Island, Friday, 20 November
Overcast. High 53°, low 42°.
0.3Blue Island, Saturday, 21 November
Rain. High 46°, low 42°.
0Blue Island, Sunday, 22 November
Partly cloudy. High 49°, low 38°.
0Blue Island, Monday, 23 November
Overcast. High 62°, low 45°.
0.08Blue Island, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08
Blue Island, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Blue Island, Thursday, 26 November
Climate normal for this date — 60-year average.
0.22Blue Island, Friday, 27 November
Climate normal for this date — 60-year average.
0.14Blue Island, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Blue Island, Sunday, 29 November
Climate normal for this date — 60-year average.
0.09Blue Island, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Blue Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Blue Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Blue Island, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07Blue Island, Friday, 4 December
Climate normal for this date — 60-year average.
0.09Blue Island, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Blue Island, Sunday, 6 December
Climate normal for this date — 60-year average.
0.13Blue Island, Monday, 7 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 Blue Island, 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 Blue Island, 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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