Weather in Park Forest, IL
Park Forest, Wednesday, 14 October, 10:56
Overcast. Feels like 64°. High 68°, low 58°.
Monthly outlook for Park Forest, IL: average high 63.8°, average low 48.3°. That is 2.6° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 24 October (74.9°), the coolest 17 October (39.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 65.2° | 60.3° | +2.7° |
| 24 October – 2 November | 61.4° | 56.6° | +2.7° |
| 3 November – 12 November | at normal | 51.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arbury Hills (9 mi).
0.91
Park Forest, Thursday, 15 October
Heavy rain. High 71°, low 57°.
0.27Park Forest, Friday, 16 October
Rain. High 65°, low 46°.
0
Park Forest, Saturday, 17 October
Clear. High 54°, low 40°.
0Park Forest, Sunday, 18 October
Clear. High 60°, low 43°.
0Park Forest, Monday, 19 October
Overcast. High 64°, low 43°.
0Park Forest, Tuesday, 20 October
Overcast. High 69°, low 51°.
0Park Forest, Wednesday, 21 October
Clear. High 74°, low 54°.
0.59Park Forest, Thursday, 22 October
Rain. High 66°, low 54°.
0.01Park Forest, Friday, 23 October
Light rain. High 61°, low 49°.
0.01Park Forest, Saturday, 24 October
Light rain. High 75°, low 53°.
0Park Forest, Sunday, 25 October
Clear. High 54°, low 45°.
0Park Forest, Monday, 26 October
Clear. High 61°, low 41°.
0Park Forest, Tuesday, 27 October
Overcast. High 62°, low 45°.
0.29Park Forest, Wednesday, 28 October
Light rain. High 61°, low 49°.
0.33Park Forest, Thursday, 29 October
Rain. High 55°, low 47°.
0.11
Park Forest, Friday, 30 October
Climate normal for this date — 60-year average.
0.15
Park Forest, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Park Forest, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Park Forest, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Park Forest, Tuesday, 3 November
Climate normal for this date — 60-year average.
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.
0.08Park 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.
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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