Weather in Westchester, IL
Westchester, Saturday, 14 November, 02:05
Mostly clear. Feels like 26°. High 49°, low 31°.
Monthly outlook for Westchester, IL: average high 46.7°, average low 34.9°. That is 1° above the climate normal for November. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (65.6°), the coolest 24 November (24.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 52.2° | 46.5° | +3.2° |
| 24 November – 3 December | 37.6° | 41.5° | -2.2° |
| 4 December – 13 December | at normal | 36.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — La Grange Park (2 mi).
0
Westchester, Sunday, 15 November
Clear. High 51°, low 32°.
0Westchester, Monday, 16 November
Clear. High 49°, low 32°.
0Westchester, Tuesday, 17 November
Clear. High 51°, low 35°.
0
Westchester, Wednesday, 18 November
Overcast. High 55°, low 38°.
0.01
Westchester, Thursday, 19 November
Light rain. High 58°, low 46°.
0Westchester, Friday, 20 November
Overcast. High 59°, low 51°.
0.03Westchester, Saturday, 21 November
Light rain. High 66°, low 55°.
0.16
Westchester, Sunday, 22 November
Snow. High 56°, low 30°.
0Westchester, Monday, 23 November
Overcast. High 29°, low 26°.
0Westchester, Tuesday, 24 November
Clear. High 31°, low 25°.
0Westchester, Wednesday, 25 November
Overcast. High 35°, low 27°.
0Westchester, Thursday, 26 November
Overcast. High 36°, low 30°.
0.15Westchester, Friday, 27 November
Light rain. High 40°, low 32°.
0.46Westchester, Saturday, 28 November
Snow. High 49°, low 36°.
0
Westchester, Sunday, 29 November
Partly cloudy. High 36°, low 31°.
0.09Westchester, Monday, 30 November
Climate normal for this date — 60-year average.
0.16
Westchester, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Westchester, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Westchester, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07Westchester, Friday, 4 December
Climate normal for this date — 60-year average.
0.09Westchester, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Westchester, Sunday, 6 December
Climate normal for this date — 60-year average.
0.13Westchester, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Westchester, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Westchester, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Westchester, Thursday, 10 December
Climate normal for this date — 60-year average.
0.13Westchester, Friday, 11 December
Climate normal for this date — 60-year average.
0.1Westchester, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Westchester, Sunday, 13 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 Westchester, 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 Westchester, 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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