Weather in Chicago Heights, IL
Chicago Heights, Tuesday, 27 October, 15:03
Clear. Feels like 70°. High 70°, low 51°.
Monthly outlook for Chicago Heights, IL: average high 60.1°, average low 49.8°. That is 3.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 28 October (72°), the coolest 11 November (33.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 64.5° | 54.8° | +5.4° |
| 6 November – 15 November | 52.7° | 49.4° | +1.8° |
| 16 November – 25 November | at normal | 45.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Island (10 mi).
0Chicago Heights, Wednesday, 28 October
Clear. High 72°, low 57°.
0.01
Chicago Heights, Thursday, 29 October
Light rain. High 70°, low 55°.
0
Chicago Heights, Friday, 30 October
Overcast. High 65°, low 48°.
0.14Chicago Heights, Saturday, 31 October
Light rain. High 65°, low 53°.
0Chicago Heights, Sunday, 1 November
Overcast. High 69°, low 51°.
0Chicago Heights, Monday, 2 November
Overcast. High 60°, low 56°.
0Chicago Heights, Tuesday, 3 November
Overcast. High 60°, low 55°.
0.23Chicago Heights, Wednesday, 4 November
Rain. High 57°, low 53°.
0.66Chicago Heights, Thursday, 5 November
Rain. High 57°, low 55°.
0.01Chicago Heights, Friday, 6 November
Light rain. High 54°, low 51°.
0Chicago Heights, Saturday, 7 November
Overcast. High 54°, low 47°.
0
Chicago Heights, Sunday, 8 November
Partly cloudy. High 57°, low 43°.
0.23Chicago Heights, Monday, 9 November
Rain. High 59°, low 48°.
0Chicago Heights, Tuesday, 10 November
Overcast. High 47°, low 41°.
0Chicago Heights, Wednesday, 11 November
Partly cloudy. High 44°, low 33°.
0.06Chicago Heights, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Chicago Heights, Friday, 13 November
Climate normal for this date — 60-year average.
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.
0.05
Chicago 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.
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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