Weather in Blue Island, IL
Blue Island, Thursday, 5 November, 20:15
Fog. Feels like 43°. High 53°, low 47°.
Monthly outlook for Blue Island, IL: average high 52.6°, average low 41°. That is 2° above the climate normal for November. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 17 November (62.2°), the coolest 7 November (32.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 5 November – 14 November | 51.4° | 50° | +0.8° |
| 15 November – 24 November | 54.7° | 46.1° | +4.8° |
| 25 November – 4 December | at normal | 41.2° | — |
November records over 66 years
0
Blue Island, Friday, 6 November
Overcast. High 48°, low 38°.
0Blue Island, Saturday, 7 November
Overcast. High 49°, low 33°.
0
Blue Island, Sunday, 8 November
Clear. High 58°, low 40°.
0Blue Island, Monday, 9 November
Overcast. High 57°, low 37°.
0Blue Island, Tuesday, 10 November
Clear. High 61°, low 47°.
0Blue Island, Wednesday, 11 November
Overcast. High 55°, low 39°.
0
Blue Island, Thursday, 12 November
Light rain. High 47°, low 41°.
0.1
Blue Island, Friday, 13 November
Snow. High 42°, low 36°.
0.06Blue Island, Saturday, 14 November
Light snow. High 44°, low 36°.
0Blue Island, Sunday, 15 November
Clear. High 49°, low 36°.
0
Blue Island, Monday, 16 November
Partly cloudy. High 59°, low 41°.
0Blue Island, Tuesday, 17 November
Overcast. High 62°, low 46°.
0Blue Island, Wednesday, 18 November
Overcast. High 58°, low 49°.
0Blue Island, Thursday, 19 November
Overcast. High 53°, low 45°.
0.31Blue Island, Friday, 20 November
Rain. High 47°, low 45°.
0.11Blue Island, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05
Blue Island, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Blue Island, Monday, 23 November
Climate normal for this date — 60-year average.
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.
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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