Weather in Forest Park, IL
Forest Park, Monday, 26 October, 12:11
Overcast. Feels like 61°. High 62°, low 50°.
Monthly outlook for Forest Park, IL: average high 62°, average low 50°. That is 4.6° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 28 October (70°), the coolest 7 November (41.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 63.3° | 55° | +4.6° |
| 5 November – 14 November | 59.8° | 49.9° | +5.6° |
| 15 November – 24 November | at normal | 45.9° | — |
October records over 66 years
0Forest Park, Tuesday, 27 October
Overcast. High 69°, low 51°.
0
Forest Park, Wednesday, 28 October
Clear. High 70°, low 56°.
0.03
Forest Park, Thursday, 29 October
Light rain. High 69°, low 57°.
0Forest Park, Friday, 30 October
Overcast. High 66°, low 48°.
1.14Forest Park, Saturday, 31 October
Heavy rain. High 65°, low 54°.
0.19Forest Park, Sunday, 1 November
Light rain. High 58°, low 56°.
0.01Forest Park, Monday, 2 November
Light rain. High 60°, low 56°.
0.82Forest Park, Tuesday, 3 November
Rain. High 61°, low 47°.
0.12Forest Park, Wednesday, 4 November
Light rain. High 54°, low 47°.
0Forest Park, Thursday, 5 November
Overcast. High 64°, low 47°.
0
Forest Park, Friday, 6 November
Partly cloudy. High 65°, low 48°.
0Forest Park, Saturday, 7 November
Partly cloudy. High 52°, low 41°.
0Forest Park, Sunday, 8 November
Overcast. High 55°, low 46°.
0Forest Park, Monday, 9 November
Overcast. High 60°, low 47°.
0Forest Park, Tuesday, 10 November
Partly cloudy. High 63°, low 49°.
0.08Forest Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Forest Park, Thursday, 12 November
Climate normal for this date — 60-year average.
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.
0.05
Forest 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.
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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