Weather in Deer Park, IL
Deer Park, Thursday, 5 November, 04:54
Overcast. Feels like 45°. High 52°, low 45°.
Monthly outlook for Deer Park, IL: average high 53.1°, average low 40.1°. That is 3.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 17 November (69.1°), the coolest 12 November (31.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 5 November – 14 November | 51.3° | 48.2° | +1.7° |
| 15 November – 24 November | 56.3° | 44.6° | +6.5° |
| 25 November – 4 December | at normal | 40.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (14 mi).
0Deer Park, Friday, 6 November
Overcast. High 48°, low 37°.
0
Deer Park, Saturday, 7 November
Partly cloudy. High 49°, low 33°.
0
Deer Park, Sunday, 8 November
Mostly clear. High 58°, low 39°.
0Deer Park, Monday, 9 November
Mostly clear. High 59°, low 37°.
0Deer Park, Tuesday, 10 November
Overcast. High 56°, low 45°.
0
Deer Park, Wednesday, 11 November
Clear. High 48°, low 38°.
0Deer Park, Thursday, 12 November
Overcast. High 43°, low 31°.
0.01
Deer Park, Friday, 13 November
Light rain. High 49°, low 36°.
0Deer Park, Saturday, 14 November
Overcast. High 51°, low 38°.
0Deer Park, Sunday, 15 November
Clear. High 58°, low 42°.
0.09Deer Park, Monday, 16 November
Light rain. High 66°, low 50°.
0.07Deer Park, Tuesday, 17 November
Light rain. High 69°, low 56°.
0Deer Park, Wednesday, 18 November
Overcast. High 54°, low 46°.
0Deer Park, Thursday, 19 November
Clear. High 44°, low 36°.
0Deer Park, Friday, 20 November
Overcast. High 46°, low 33°.
0.11Deer Park, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Deer Park, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Deer Park, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Deer Park, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09
Deer Park, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Deer Park, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Deer Park, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Deer Park, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Deer Park, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Deer Park, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Deer Park, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Deer Park, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Deer Park, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Deer Park, Friday, 4 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 Deer 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 Deer 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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