Weather in Park Forest, IL
Park Forest, Saturday, 8 August, 21:32
Clear. Feels like 71°. High 83°, low 69°.
Monthly outlook for Park Forest, IL: average high 78.6°, average low 63.8°. That is 0.8° below the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 9 August (87.7°), the coolest 21 August (55.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 79.8° | 80.1° | -0.2° |
| 18 August – 27 August | 76.5° | 80° | -1.9° |
| 28 August – 6 September | at normal | 78.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Orland Hills (11 mi).
0.07
Park Forest, Sunday, 9 August
Rain. High 88°, low 64°.
0.22Park Forest, Monday, 10 August
Rain. High 87°, low 72°.
0.13Park Forest, Tuesday, 11 August
Rain. High 80°, low 72°.
0.01Park Forest, Wednesday, 12 August
Light rain. High 84°, low 68°.
0
Park Forest, Thursday, 13 August
Overcast. High 76°, low 63°.
0
Park Forest, Friday, 14 August
Clear. High 79°, low 61°.
0Park Forest, Saturday, 15 August
Light rain. High 67°, low 61°.
0Park Forest, Sunday, 16 August
Overcast. High 74°, low 64°.
0Park Forest, Monday, 17 August
Overcast. High 79°, low 63°.
0Park Forest, Tuesday, 18 August
Overcast. High 82°, low 66°.
0.06Park Forest, Wednesday, 19 August
Light rain. High 77°, low 65°.
0.01Park Forest, Thursday, 20 August
Light rain. High 69°, low 57°.
0
Park Forest, Friday, 21 August
Partly cloudy. High 76°, low 55°.
0.01Park Forest, Saturday, 22 August
Light rain. High 73°, low 56°.
0Park Forest, Sunday, 23 August
Clear. High 83°, low 64°.
0.13Park Forest, Monday, 24 August
Climate normal for this date — 60-year average.
0.09Park Forest, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15
Park Forest, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Park Forest, Thursday, 27 August
Climate normal for this date — 60-year average.
0.15Park Forest, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Park Forest, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Park Forest, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Park Forest, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Park Forest, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Park Forest, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.07Park Forest, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Park Forest, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Park Forest, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Park Forest, Sunday, 6 September
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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