Weather in Chicago Heights, IL
Chicago Heights, Friday, 23 October, 21:07
Clear. Feels like 55°. High 71°, low 46°.
Monthly outlook for Chicago Heights, IL: average high 66°, average low 50.2°. That is 6.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 29 October (74.6°), the coolest 4 November (43.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 69.7° | 56.5° | +7.3° |
| 2 November – 11 November | 59.9° | 51.8° | +4.5° |
| 12 November – 21 November | at normal | 46.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Island (10 mi).
0
Chicago Heights, Saturday, 24 October
Overcast. High 69°, low 47°.
0Chicago Heights, Sunday, 25 October
Overcast. High 72°, low 46°.
0
Chicago Heights, Monday, 26 October
Partly cloudy. High 66°, low 50°.
0Chicago Heights, Tuesday, 27 October
Overcast. High 66°, low 51°.
0
Chicago Heights, Wednesday, 28 October
Clear. High 71°, low 55°.
0Chicago Heights, Thursday, 29 October
Overcast. High 75°, low 55°.
0.01
Chicago Heights, Friday, 30 October
Light rain. High 73°, low 63°.
0.13Chicago Heights, Saturday, 31 October
Light rain. High 72°, low 58°.
0.04Chicago Heights, Sunday, 1 November
Light rain. High 62°, low 53°.
0Chicago Heights, Monday, 2 November
Clear. High 55°, low 44°.
0Chicago Heights, Tuesday, 3 November
Overcast. High 50°, low 45°.
0Chicago Heights, Wednesday, 4 November
Overcast. High 53°, low 43°.
0Chicago Heights, Thursday, 5 November
Overcast. High 63°, low 44°.
0Chicago Heights, Friday, 6 November
Partly cloudy. High 73°, low 50°.
0Chicago Heights, Saturday, 7 November
Overcast. High 65°, low 54°.
0.06Chicago Heights, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13
Chicago Heights, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Chicago Heights, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Chicago Heights, Wednesday, 11 November
Climate normal for this date — 60-year average.
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.
0.07Chicago 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.
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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