Weather in Deer Park, IL
Deer Park, Sunday, 15 November, 11:54
Mostly clear. Feels like 47°. High 49°, low 28°.
Monthly outlook for Deer Park, IL: average high 50.2°, average low 37.3°. That is 3.9° above the climate normal for November. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 19 November (59.9°), the coolest 15 November (28.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 52.3° | 44.6° | +4.3° |
| 25 November – 4 December | 46.9° | 40.1° | +3.7° |
| 5 December – 14 December | at normal | 36° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (14 mi).
0
Deer Park, Monday, 16 November
Clear. High 52°, low 30°.
0Deer Park, Tuesday, 17 November
Clear. High 53°, low 36°.
0
Deer Park, Wednesday, 18 November
Overcast. High 54°, low 39°.
0Deer Park, Thursday, 19 November
Clear. High 60°, low 46°.
0.01
Deer Park, Friday, 20 November
Light rain. High 55°, low 37°.
0.02Deer Park, Saturday, 21 November
Light rain. High 59°, low 49°.
0Deer Park, Sunday, 22 November
Clear. High 52°, low 37°.
0Deer Park, Monday, 23 November
Overcast. High 44°, low 32°.
0Deer Park, Tuesday, 24 November
Overcast. High 44°, low 36°.
0
Deer Park, Wednesday, 25 November
Partly cloudy. High 48°, low 33°.
0Deer Park, Thursday, 26 November
Overcast. High 54°, low 40°.
0.32Deer Park, Friday, 27 November
Light rain. High 48°, low 43°.
0Deer Park, Saturday, 28 November
Partly cloudy. High 47°, low 38°.
0Deer Park, Sunday, 29 November
Overcast. High 42°, low 38°.
0Deer Park, Monday, 30 November
Overcast. High 42°, low 34°.
0.15
Deer 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.
0.08Deer Park, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Deer Park, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Deer Park, Thursday, 10 December
Climate normal for this date — 60-year average.
0.11Deer Park, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Deer Park, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Deer Park, Sunday, 13 December
Climate normal for this date — 60-year average.
0.11Deer Park, Monday, 14 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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