Weather in Forest Park, IL
Forest Park, Wednesday, 28 October, 16:13
Mostly clear. Feels like 76°. High 76°, low 52°.
Monthly outlook for Forest Park, IL: average high 56.1°, average low 46.9°. That is 1.9° above the climate normal for October. Precipitation is expected on 9 days (about 2.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (76.1°), the coolest 12 November (33.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62° | 54.4° | +4.3° |
| 7 November – 16 November | 46.3° | 48.7° | -1.4° |
| 17 November – 26 November | at normal | 45.2° | — |
October records over 66 years
0.11
Forest Park, Thursday, 29 October
Rain. High 67°, low 53°.
0.18Forest Park, Friday, 30 October
Rain. High 61°, low 46°.
0.31Forest Park, Saturday, 31 October
Rain. High 59°, low 52°.
0
Forest Park, Sunday, 1 November
Overcast. High 67°, low 52°.
0.05Forest Park, Monday, 2 November
Light rain. High 65°, low 53°.
0.39Forest Park, Tuesday, 3 November
Rain. High 61°, low 59°.
0.54Forest Park, Wednesday, 4 November
Rain. High 58°, low 55°.
0.44Forest Park, Thursday, 5 November
Rain. High 59°, low 51°.
0
Forest Park, Friday, 6 November
Clear. High 47°, low 40°.
0Forest Park, Saturday, 7 November
Clear. High 48°, low 37°.
0.37Forest Park, Sunday, 8 November
Rain. High 46°, low 43°.
0.14Forest Park, Monday, 9 November
Light rain. High 49°, low 46°.
0.04Forest Park, Tuesday, 10 November
Light rain. High 48°, low 42°.
0Forest Park, Wednesday, 11 November
Mostly clear. High 43°, low 35°.
0
Forest Park, Thursday, 12 November
Partly cloudy. High 44°, low 33°.
0.06Forest Park, Friday, 13 November
Climate normal for this date — 60-year average.
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.
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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