Weather in Chicago Heights, IL
Chicago Heights, Thursday, 29 October, 16:57
Partly cloudy. Feels like 68°. High 69°, low 54°.
Monthly outlook for Chicago Heights, IL: average high 61.3°, average low 50.5°. That is 5° above the climate normal for October. Precipitation is expected on 8 days (about 2.6 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 3 November (70.4°), the coolest 7 November (39.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 62.4° | 54° | +4.7° |
| 8 November – 17 November | 59.4° | 48.5° | +6.1° |
| 18 November – 27 November | at normal | 44.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Island (10 mi).
0
Chicago Heights, Friday, 30 October
Overcast. High 65°, low 48°.
0.95
Chicago Heights, Saturday, 31 October
Heavy rain. High 61°, low 51°.
0.08Chicago Heights, Sunday, 1 November
Rain. High 65°, low 52°.
0Chicago Heights, Monday, 2 November
Overcast. High 63°, low 52°.
0.1Chicago Heights, Tuesday, 3 November
Light rain. High 70°, low 60°.
0.04Chicago Heights, Wednesday, 4 November
Light rain. High 68°, low 60°.
0.4Chicago Heights, Thursday, 5 November
Rain. High 58°, low 51°.
0
Chicago Heights, Friday, 6 November
Clear. High 50°, low 41°.
0Chicago Heights, Saturday, 7 November
Overcast. High 55°, low 40°.
0.05Chicago Heights, Sunday, 8 November
Light rain. High 57°, low 48°.
0.83Chicago Heights, Monday, 9 November
Rain. High 56°, low 51°.
0Chicago Heights, Tuesday, 10 November
Overcast. High 57°, low 50°.
0Chicago Heights, Wednesday, 11 November
Overcast. High 63°, low 48°.
0.15Chicago Heights, Thursday, 12 November
Light rain. High 63°, low 54°.
0
Chicago Heights, Friday, 13 November
Mostly clear. High 61°, low 46°.
0.07
Chicago Heights, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Chicago Heights, Sunday, 15 November
Climate normal for this date — 60-year average.
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.
0.08Chicago 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.
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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