Weather in Glencoe, IL
Glencoe, Friday, 9 October, 11:03
Overcast. Feels like 63°. High 71°, low 51°.
Monthly outlook for Glencoe, IL: average high 63°, average low 50.9°. That is 2.4° above the climate normal for October. Precipitation is expected on 3 days (about 2.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (79.8°), the coolest 24 October (37.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 65.6° | 59.8° | +3.2° |
| 19 October – 28 October | 58.6° | 55.8° | +1.6° |
| 29 October – 7 November | at normal | 52.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (6 mi).
0Glencoe, Saturday, 10 October
Overcast. High 77°, low 61°.
0
Glencoe, Sunday, 11 October
Clear. High 71°, low 59°.
0.01
Glencoe, Monday, 12 October
Light rain. High 80°, low 61°.
0.02Glencoe, Tuesday, 13 October
Light rain. High 70°, low 60°.
0.01Glencoe, Wednesday, 14 October
Light rain. High 61°, low 58°.
0.42Glencoe, Thursday, 15 October
Rain. High 63°, low 55°.
1.59Glencoe, Friday, 16 October
Heavy rain. High 64°, low 45°.
0Glencoe, Saturday, 17 October
Overcast. High 47°, low 38°.
0Glencoe, Sunday, 18 October
Overcast. High 52°, low 39°.
0Glencoe, Monday, 19 October
Overcast. High 60°, low 46°.
0Glencoe, Tuesday, 20 October
Clear. High 62°, low 49°.
0Glencoe, Wednesday, 21 October
Overcast. High 66°, low 56°.
0.76Glencoe, Thursday, 22 October
Rain. High 60°, low 54°.
0.02Glencoe, Friday, 23 October
Light rain. High 57°, low 44°.
0
Glencoe, Saturday, 24 October
Partly cloudy. High 48°, low 38°.
0.11
Glencoe, Sunday, 25 October
Climate normal for this date — 60-year average.
0.11Glencoe, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Glencoe, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.05
Glencoe, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Glencoe, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1Glencoe, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Glencoe, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Glencoe, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Glencoe, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Glencoe, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Glencoe, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Glencoe, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Glencoe, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Glencoe, Saturday, 7 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 Glencoe, 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 Glencoe, 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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