Weather in Williams Park, IL
Williams Park, Wednesday, 21 October, 23:25
Clear. Feels like 51°. High 72°, low 41°.
Monthly outlook for Williams Park, IL: average high 60.3°, average low 43.5°. That is 3.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (73.1°), the coolest 3 November (32.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 63.9° | 55.7° | +4.5° |
| 31 October – 9 November | 54.3° | 51.4° | +1.6° |
| 10 November – 19 November | at normal | 46° | — |
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, 22 October
Clear. High 73°, low 45°.
0Williams Park, Friday, 23 October
Clear. High 71°, low 46°.
0
Williams Park, Saturday, 24 October
Overcast. High 67°, low 49°.
0Williams Park, Sunday, 25 October
Clear. High 70°, low 53°.
0Williams Park, Monday, 26 October
Overcast. High 65°, low 50°.
0.2
Williams Park, Tuesday, 27 October
Light rain. High 62°, low 50°.
0.43Williams Park, Wednesday, 28 October
Rain. High 49°, low 38°.
0Williams Park, Thursday, 29 October
Clear. High 53°, low 35°.
0
Williams Park, Friday, 30 October
Partly cloudy. High 57°, low 38°.
0.01Williams Park, Saturday, 31 October
Light rain. High 61°, low 50°.
0.7Williams Park, Sunday, 1 November
Rain. High 55°, low 53°.
0.2Williams Park, Monday, 2 November
Rain. High 54°, low 39°.
0Williams Park, Tuesday, 3 November
Overcast. High 48°, low 33°.
0Williams Park, Wednesday, 4 November
Overcast. High 53°, low 38°.
0.02Williams Park, Thursday, 5 November
Light rain. High 55°, low 38°.
0.09Williams Park, Friday, 6 November
Climate normal for this date — 60-year average.
0.05
Williams Park, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Williams Park, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Williams Park, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Williams Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Williams Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Williams Park, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Williams 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.
0.05Williams 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.
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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