Weather in Deer Park, IL
Deer Park, Sunday, 8 November, 05:41
Clear. Feels like 34°. High 61°, low 39°.
Monthly outlook for Deer Park, IL: average high 52.1°, average low 40°. That is 3.5° above the climate normal for November. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 19 November (61.2°), the coolest 14 November (28°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 51.2° | 46.8° | +2.5° |
| 18 November – 27 November | 53.6° | 43.4° | +5.6° |
| 28 November – 7 December | at normal | 38.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (14 mi).
0
Deer Park, Monday, 9 November
Partly cloudy. High 58°, low 35°.
0
Deer Park, Tuesday, 10 November
Mostly clear. High 58°, low 42°.
0.39
Deer Park, Wednesday, 11 November
Rain. High 50°, low 41°.
0
Deer Park, Thursday, 12 November
Overcast. High 43°, low 35°.
0Deer Park, Friday, 13 November
Overcast. High 40°, low 32°.
0Deer Park, Saturday, 14 November
Mostly clear. High 44°, low 28°.
0Deer Park, Sunday, 15 November
Overcast. High 52°, low 34°.
0
Deer Park, Monday, 16 November
Clear. High 52°, low 38°.
0Deer Park, Tuesday, 17 November
Overcast. High 54°, low 41°.
0.33Deer Park, Wednesday, 18 November
Rain. High 57°, low 49°.
0.15Deer Park, Thursday, 19 November
Light rain. High 61°, low 56°.
0.3Deer Park, Friday, 20 November
Rain. High 60°, low 55°.
0Deer Park, Saturday, 21 November
Overcast. High 50°, low 40°.
0Deer Park, Sunday, 22 November
Clear. High 47°, low 34°.
0.3Deer Park, Monday, 23 November
Rain. High 46°, low 42°.
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.
0.08Deer Park, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Deer Park, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Deer Park, Monday, 7 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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