Weather in Glen Ellyn, IL
Glen Ellyn, Tuesday, 27 October, 08:15
Fog. Feels like 53°. High 67°, low 51°.
Monthly outlook for Glen Ellyn, IL: average high 58.2°, average low 49°. That is 3° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 28 October (71.6°), the coolest 11 November (31.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 62.2° | 54.3° | +4.4° |
| 6 November – 15 November | 51.7° | 48.8° | +1.6° |
| 16 November – 25 November | at normal | 45° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Glendale Heights (4 mi).
0
Glen Ellyn, Wednesday, 28 October
Mostly clear. High 72°, low 57°.
0.03
Glen Ellyn, Thursday, 29 October
Light rain. High 66°, low 50°.
0
Glen Ellyn, Friday, 30 October
Overcast. High 63°, low 44°.
0.86Glen Ellyn, Saturday, 31 October
Rain. High 63°, low 53°.
0Glen Ellyn, Sunday, 1 November
Overcast. High 67°, low 52°.
0.01Glen Ellyn, Monday, 2 November
Light rain. High 58°, low 55°.
0Glen Ellyn, Tuesday, 3 November
Overcast. High 57°, low 55°.
0.28Glen Ellyn, Wednesday, 4 November
Rain. High 54°, low 52°.
0.33Glen Ellyn, Thursday, 5 November
Light rain. High 55°, low 53°.
0Glen Ellyn, Friday, 6 November
Light rain. High 52°, low 50°.
0Glen Ellyn, Saturday, 7 November
Overcast. High 56°, low 48°.
0
Glen Ellyn, Sunday, 8 November
Partly cloudy. High 56°, low 44°.
0.27Glen Ellyn, Monday, 9 November
Rain. High 56°, low 49°.
0Glen Ellyn, Tuesday, 10 November
Overcast. High 47°, low 39°.
0Glen Ellyn, Wednesday, 11 November
Overcast. High 42°, low 32°.
0.06Glen Ellyn, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Glen Ellyn, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Glen Ellyn, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Glen Ellyn, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Glen Ellyn, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Glen Ellyn, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Glen Ellyn, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Glen Ellyn, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Glen Ellyn, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Glen Ellyn, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Glen Ellyn, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Glen Ellyn, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Glen Ellyn, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08
Glen Ellyn, Wednesday, 25 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 Glen Ellyn, 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 Glen Ellyn, 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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