Weather in Chicago Heights, IL
Chicago Heights, Saturday, 31 October, 10:45
Overcast. Feels like 54°. High 60°, low 52°.
Monthly outlook for Chicago Heights, IL: average high 57.8°, average low 49.5°. That is 3.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 3 November (68.9°), the coolest 15 November (40.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 59.9° | 53.1° | +3.8° |
| 10 November – 19 November | 54.4° | 47.7° | +3.8° |
| 20 November – 29 November | at normal | 43.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Island (10 mi).
0.04
Chicago Heights, Sunday, 1 November
Light rain. High 67°, low 56°.
0.01Chicago Heights, Monday, 2 November
Light rain. High 62°, low 53°.
0.05Chicago Heights, Tuesday, 3 November
Light rain. High 69°, low 61°.
0.42Chicago Heights, Wednesday, 4 November
Rain. High 66°, low 57°.
0.22Chicago Heights, Thursday, 5 November
Light rain. High 58°, low 48°.
0Chicago Heights, Friday, 6 November
Light rain. High 54°, low 52°.
0
Chicago Heights, Saturday, 7 November
Partly cloudy. High 56°, low 47°.
0.04Chicago Heights, Sunday, 8 November
Light rain. High 52°, low 46°.
0.03Chicago Heights, Monday, 9 November
Light rain. High 55°, low 50°.
0
Chicago Heights, Tuesday, 10 November
Clear. High 60°, low 47°.
0Chicago Heights, Wednesday, 11 November
Overcast. High 56°, low 50°.
0.06Chicago Heights, Thursday, 12 November
Light rain. High 52°, low 45°.
0Chicago Heights, Friday, 13 November
Partly cloudy. High 53°, low 40°.
0Chicago Heights, Saturday, 14 November
Partly cloudy. High 56°, low 47°.
0
Chicago Heights, Sunday, 15 November
Mostly clear. High 48°, low 40°.
0.05Chicago Heights, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Chicago Heights, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Chicago Heights, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08
Chicago Heights, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Chicago Heights, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Chicago Heights, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05Chicago Heights, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Chicago Heights, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Chicago Heights, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08Chicago Heights, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Chicago Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
0.22Chicago Heights, Friday, 27 November
Climate normal for this date — 60-year average.
0.14Chicago Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Chicago Heights, Sunday, 29 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 Chicago Heights, 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 Chicago Heights, 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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