Weather in Blue Island, IL
Blue Island, Sunday, 15 November, 00:53
Clear. Feels like 34°. High 51°, low 33°.
Monthly outlook for Blue Island, IL: average high 49.5°, average low 36.7°. That is 2.7° above the climate normal for November. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (63°), the coolest 23 November (29.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 52.4° | 46.1° | +3.5° |
| 25 November – 4 December | 44.6° | 41.2° | +1.9° |
| 5 December – 14 December | at normal | 36.9° | — |
November records over 66 years
0
Blue Island, Monday, 16 November
Clear. High 51°, low 33°.
0Blue Island, Tuesday, 17 November
Clear. High 53°, low 35°.
0
Blue Island, Wednesday, 18 November
Overcast. High 55°, low 39°.
0
Blue Island, Thursday, 19 November
Partly cloudy. High 60°, low 47°.
0Blue Island, Friday, 20 November
Overcast. High 56°, low 39°.
0Blue Island, Saturday, 21 November
Overcast. High 63°, low 54°.
0.17
Blue Island, Sunday, 22 November
Snow. High 56°, low 34°.
0.02Blue Island, Monday, 23 November
Light snow. High 40°, low 30°.
0Blue Island, Tuesday, 24 November
Light snow. High 38°, low 33°.
0Blue Island, Wednesday, 25 November
Overcast. High 39°, low 30°.
0Blue Island, Thursday, 26 November
Overcast. High 45°, low 32°.
0.65
Blue Island, Friday, 27 November
Rain. High 51°, low 41°.
0.33Blue Island, Saturday, 28 November
Rain. High 51°, low 38°.
0.03Blue Island, Sunday, 29 November
Light rain. High 39°, low 37°.
0Blue Island, Monday, 30 November
Partly cloudy. High 42°, low 33°.
0.15
Blue 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.
0.08Blue Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Blue Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Blue Island, Thursday, 10 December
Climate normal for this date — 60-year average.
0.12Blue Island, Friday, 11 December
Climate normal for this date — 60-year average.
0.1Blue Island, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Blue Island, Sunday, 13 December
Climate normal for this date — 60-year average.
0.11Blue Island, 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 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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