Weather in Glen Ellyn, IL
Glen Ellyn, Wednesday, 28 October, 09:05
Clear. Feels like 56°. High 73°, low 53°.
Monthly outlook for Glen Ellyn, IL: average high 56.9°, average low 48.1°. That is 2.6° above the climate normal for October. Precipitation is expected on 7 days (about 4.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (73°), the coolest 8 November (39.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 61.6° | 53.9° | +4.3° |
| 7 November – 16 November | 49.1° | 48.3° | +0.5° |
| 17 November – 26 November | at normal | 44.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Glendale Heights (4 mi).
0
Glen Ellyn, Thursday, 29 October
Light rain. High 67°, low 55°.
0.24Glen Ellyn, Friday, 30 October
Rain. High 63°, low 45°.
0.86Glen Ellyn, Saturday, 31 October
Heavy rain. High 59°, low 52°.
0
Glen Ellyn, Sunday, 1 November
Overcast. High 63°, low 50°.
0.03Glen Ellyn, Monday, 2 November
Light rain. High 65°, low 52°.
1.36Glen Ellyn, Tuesday, 3 November
Rain. High 59°, low 56°.
0.71Glen Ellyn, Wednesday, 4 November
Rain. High 57°, low 56°.
0.26Glen Ellyn, Thursday, 5 November
Light rain. High 58°, low 53°.
0
Glen Ellyn, Friday, 6 November
Mostly clear. High 52°, low 42°.
0Glen Ellyn, Saturday, 7 November
Overcast. High 49°, low 43°.
0Glen Ellyn, Sunday, 8 November
Clear. High 50°, low 40°.
0Glen Ellyn, Monday, 9 November
Overcast. High 53°, low 40°.
0.44Glen Ellyn, Tuesday, 10 November
Rain. High 51°, low 49°.
0.42Glen Ellyn, Wednesday, 11 November
Rain. High 47°, low 42°.
0.01Glen Ellyn, Thursday, 12 November
Light rain. High 45°, low 42°.
0.04Glen Ellyn, Friday, 13 November
Climate normal for this date — 60-year average.
0.07
Glen 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.
0.11Glen Ellyn, 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 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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