Weather in Forest Park, IL
Forest Park, Thursday, 29 October, 22:48
Clear. Feels like 53°. High 68°, low 54°.
Monthly outlook for Forest Park, IL: average high 58°, average low 50.1°. That is 3.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 3 November (69.4°), the coolest 11 November (40.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 63.4° | 54° | +5.2° |
| 8 November – 17 November | 49.1° | 48.3° | +0.4° |
| 18 November – 27 November | at normal | 44.7° | — |
October records over 66 years
0.01
Forest Park, Friday, 30 October
Light rain. High 63°, low 49°.
0.78Forest Park, Saturday, 31 October
Heavy rain. High 64°, low 53°.
0
Forest Park, Sunday, 1 November
Overcast. High 67°, low 51°.
0Forest Park, Monday, 2 November
Overcast. High 61°, low 56°.
0.13Forest Park, Tuesday, 3 November
Light rain. High 69°, low 59°.
0.29Forest Park, Wednesday, 4 November
Rain. High 66°, low 61°.
0Forest Park, Thursday, 5 November
Overcast. High 62°, low 54°.
0Forest Park, Friday, 6 November
Overcast. High 56°, low 51°.
0
Forest Park, Saturday, 7 November
Mostly clear. High 58°, low 49°.
0Forest Park, Sunday, 8 November
Overcast. High 51°, low 49°.
0.41Forest Park, Monday, 9 November
Rain. High 50°, low 45°.
0.02Forest Park, Tuesday, 10 November
Light rain. High 46°, low 45°.
0
Forest Park, Wednesday, 11 November
Partly cloudy. High 48°, low 40°.
0.17Forest Park, Thursday, 12 November
Light rain. High 45°, low 42°.
0.02Forest Park, Friday, 13 November
Light rain. High 54°, low 44°.
0.07
Forest Park, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Forest Park, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Forest Park, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Forest Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Forest Park, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Forest Park, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Forest Park, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Forest Park, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05Forest Park, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Forest Park, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Forest Park, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Forest Park, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Forest Park, Thursday, 26 November
Climate normal for this date — 60-year average.
0.22Forest Park, Friday, 27 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 Forest Park, 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 Forest Park, 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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