Weather in Williams Park, IL
Williams Park, Wednesday, 28 October, 22:23
Mostly clear. Feels like 67°. High 75°, low 51°.
Monthly outlook for Williams Park, IL: average high 56.9°, average low 46.6°. That is 3.3° above the climate normal for October. Precipitation is expected on 9 days (about 4.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 28 October (74.9°), the coolest 11 November (36.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.9° | 52.7° | +5.7° |
| 7 November – 16 November | 46.8° | 47.2° | -0.2° |
| 17 November – 26 November | at normal | 43.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (10 mi).
0
Williams Park, Thursday, 29 October
Light rain. High 69°, low 53°.
0
Williams Park, Friday, 30 October
Overcast. High 62°, low 48°.
0.6Williams Park, Saturday, 31 October
Rain. High 54°, low 50°.
0Williams Park, Sunday, 1 November
Overcast. High 65°, low 47°.
0.29Williams Park, Monday, 2 November
Rain. High 62°, low 55°.
1.57Williams Park, Tuesday, 3 November
Heavy rain. High 63°, low 59°.
0.36Williams Park, Wednesday, 4 November
Rain. High 61°, low 60°.
0.41Williams Park, Thursday, 5 November
Rain. High 63°, low 56°.
0.04Williams Park, Friday, 6 November
Light rain. High 56°, low 40°.
0Williams Park, Saturday, 7 November
Overcast. High 49°, low 39°.
0Williams Park, Sunday, 8 November
Overcast. High 49°, low 37°.
0.2Williams Park, Monday, 9 November
Rain. High 49°, low 38°.
0.63Williams Park, Tuesday, 10 November
Rain. High 45°, low 37°.
0.06Williams Park, Wednesday, 11 November
Light rain. High 45°, low 37°.
0.01Williams Park, Thursday, 12 November
Light rain. High 43°, low 38°.
0.05
Williams Park, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Williams Park, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Williams Park, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05
Williams Park, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Williams Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Williams Park, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Williams Park, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07
Williams Park, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Williams Park, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Williams Park, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Williams Park, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Williams Park, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Williams Park, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Williams 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 Williams 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 Williams 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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