Weather in Park Forest, IL
Park Forest, Monday, 19 October, 22:22
Clear. Feels like 50°. High 68°, low 39°.
Monthly outlook for Park Forest, IL: average high 59.1°, average low 42.6°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (69.7°), the coolest 29 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 61.5° | 58.3° | +1.7° |
| 29 October – 7 November | 55.1° | 54.6° | +0.3° |
| 8 November – 17 November | at normal | 49° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arbury Hills (9 mi).
0
Park Forest, Tuesday, 20 October
Clear. High 68°, low 42°.
0Park Forest, Wednesday, 21 October
Clear. High 70°, low 42°.
0.02
Park Forest, Thursday, 22 October
Light rain. High 67°, low 51°.
0Park Forest, Friday, 23 October
Clear. High 62°, low 44°.
0
Park Forest, Saturday, 24 October
Partly cloudy. High 63°, low 44°.
0.02Park Forest, Sunday, 25 October
Light rain. High 67°, low 46°.
0
Park Forest, Monday, 26 October
Overcast. High 59°, low 53°.
0.39Park Forest, Tuesday, 27 October
Rain. High 51°, low 38°.
0Park Forest, Wednesday, 28 October
Clear. High 41°, low 31°.
0
Park Forest, Thursday, 29 October
Mostly clear. High 48°, low 29°.
0Park Forest, Friday, 30 October
Clear. High 54°, low 35°.
0Park Forest, Saturday, 31 October
Overcast. High 61°, low 43°.
0.07Park Forest, Sunday, 1 November
Light rain. High 60°, low 49°.
0.35Park Forest, Monday, 2 November
Rain. High 53°, low 50°.
0Park Forest, Tuesday, 3 November
Partly cloudy. High 55°, low 45°.
0.09Park Forest, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Park Forest, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08
Park Forest, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Park Forest, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Park Forest, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14Park Forest, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Park Forest, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Park Forest, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Park Forest, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Park Forest, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Park Forest, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Park Forest, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Park Forest, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Park Forest, Tuesday, 17 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 Park Forest, 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 Park Forest, 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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