Weather in Winthrop Harbor, IL
Winthrop Harbor, Wednesday, 28 October, 23:16
Partly cloudy. Feels like 66°. High 75°, low 52°.
Monthly outlook for Winthrop Harbor, IL: average high 56.8°, average low 48.3°. That is 3.6° above the climate normal for October. Precipitation is expected on 10 days (about 3.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (74.9°), the coolest 10 November (37.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.7° | 51.9° | +6° |
| 7 November – 16 November | 46.9° | 46.6° | +0.2° |
| 17 November – 26 November | at normal | 43.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kenosha (8 mi).
0
Winthrop Harbor, Thursday, 29 October
Overcast. High 69°, low 55°.
0Winthrop Harbor, Friday, 30 October
Overcast. High 62°, low 48°.
0.06
Winthrop Harbor, Saturday, 31 October
Light rain. High 57°, low 51°.
0Winthrop Harbor, Sunday, 1 November
Overcast. High 63°, low 47°.
0.25Winthrop Harbor, Monday, 2 November
Rain. High 62°, low 58°.
1.28Winthrop Harbor, Tuesday, 3 November
Rain. High 63°, low 58°.
0.49Winthrop Harbor, Wednesday, 4 November
Rain. High 58°, low 57°.
0.35Winthrop Harbor, Thursday, 5 November
Rain. High 63°, low 57°.
0.05Winthrop Harbor, Friday, 6 November
Light rain. High 56°, low 45°.
0Winthrop Harbor, Saturday, 7 November
Overcast. High 49°, low 45°.
0Winthrop Harbor, Sunday, 8 November
Overcast. High 48°, low 43°.
0.19Winthrop Harbor, Monday, 9 November
Light rain. High 50°, low 41°.
0.73Winthrop Harbor, Tuesday, 10 November
Rain. High 46°, low 38°.
0.06Winthrop Harbor, Wednesday, 11 November
Light rain. High 45°, low 39°.
0.1Winthrop Harbor, Thursday, 12 November
Light rain. High 44°, low 39°.
0.05
Winthrop Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Winthrop Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Winthrop Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05
Winthrop Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Winthrop Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Winthrop Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Winthrop Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07
Winthrop Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Winthrop Harbor, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Winthrop Harbor, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Winthrop Harbor, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Winthrop Harbor, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Winthrop Harbor, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Winthrop Harbor, Thursday, 26 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 Winthrop Harbor, 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 Winthrop Harbor, 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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