Weather in Williams Park, IL
Williams Park, Wednesday, 11 November, 19:58
Partly cloudy. Feels like 42°. High 53°, low 40°.
Monthly outlook for Williams Park, IL: average high 46.8°, average low 34.9°. That is 1.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 22 November (57.4°), the coolest 26 November (23.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 49.2° | 45.5° | +2.1° |
| 21 November – 30 November | 42.7° | 41.4° | +0.7° |
| 1 December – 10 December | at normal | 36.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (10 mi).
0
Williams Park, Thursday, 12 November
Overcast. High 47°, low 32°.
0
Williams Park, Friday, 13 November
Partly cloudy. High 44°, low 32°.
0
Williams Park, Saturday, 14 November
Clear. High 44°, low 29°.
0Williams Park, Sunday, 15 November
Clear. High 45°, low 29°.
0
Williams Park, Monday, 16 November
Mostly clear. High 50°, low 30°.
0Williams Park, Tuesday, 17 November
Mostly clear. High 51°, low 34°.
0Williams Park, Wednesday, 18 November
Clear. High 51°, low 35°.
0Williams Park, Thursday, 19 November
Overcast. High 53°, low 39°.
0Williams Park, Friday, 20 November
Overcast. High 55°, low 44°.
0Williams Park, Saturday, 21 November
Overcast. High 46°, low 43°.
0.19
Williams Park, Sunday, 22 November
Rain. High 57°, low 45°.
0Williams Park, Monday, 23 November
Overcast. High 45°, low 42°.
0.7
Williams Park, Tuesday, 24 November
Snow. High 41°, low 33°.
0.01Williams Park, Wednesday, 25 November
Light snow. High 36°, low 30°.
0Williams Park, Thursday, 26 November
Mostly clear. High 31°, low 23°.
0.21Williams Park, Friday, 27 November
Climate normal for this date — 60-year average.
0.12
Williams Park, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Williams Park, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Williams Park, Monday, 30 November
Climate normal for this date — 60-year average.
0.14Williams Park, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Williams Park, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Williams Park, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Williams Park, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Williams Park, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Williams Park, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Williams Park, Monday, 7 December
Climate normal for this date — 60-year average.
0.09Williams Park, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Williams Park, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Williams Park, Thursday, 10 December
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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