Weather in Deer Park, IL
Deer Park, Sunday, 1 November, 23:20
Overcast. Feels like 57°. High 64°, low 51°.
Monthly outlook for Deer Park, IL: average high 58.6°, average low 47.5°. That is 5.5° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 3 November (70.5°), the coolest 13 November (37.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 58.7° | 50.6° | +4.5° |
| 11 November – 20 November | 58.6° | 45.6° | +7.2° |
| 21 November – 30 November | at normal | 41.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (14 mi).
0.03
Deer Park, Monday, 2 November
Light rain. High 62°, low 57°.
0.07Deer Park, Tuesday, 3 November
Light rain. High 71°, low 62°.
0.15Deer Park, Wednesday, 4 November
Rain. High 65°, low 56°.
0Deer Park, Thursday, 5 November
Overcast. High 56°, low 50°.
0.11Deer Park, Friday, 6 November
Light rain. High 52°, low 46°.
0Deer Park, Saturday, 7 November
Overcast. High 51°, low 44°.
0
Deer Park, Sunday, 8 November
Mostly clear. High 54°, low 40°.
0
Deer Park, Monday, 9 November
Clear. High 56°, low 41°.
0Deer Park, Tuesday, 10 November
Clear. High 57°, low 43°.
0Deer Park, Wednesday, 11 November
Mostly clear. High 52°, low 40°.
0Deer Park, Thursday, 12 November
Overcast. High 49°, low 38°.
0Deer Park, Friday, 13 November
Clear. High 54°, low 38°.
0Deer Park, Saturday, 14 November
Mostly clear. High 62°, low 47°.
0
Deer Park, Sunday, 15 November
Partly cloudy. High 66°, low 53°.
0Deer Park, Monday, 16 November
Clear. High 68°, low 54°.
0.09Deer Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Deer Park, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Deer Park, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Deer Park, Friday, 20 November
Climate normal for this date — 60-year average.
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.
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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