Weather in Gillum, IL
Gillum, Monday, 19 October, 04:32
Clear. Feels like 39°. High 69°, low 42°.
Monthly outlook for Gillum, IL: average high 63.3°, average low 45.1°. That is 2.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 26 October (72.4°), the coolest 29 October (30.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 66.5° | 59.6° | +3.9° |
| 29 October – 7 November | 57.8° | 55.8° | +1.1° |
| 8 November – 17 November | at normal | 50.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bloomington (6 mi).
0
Gillum, Tuesday, 20 October
Clear. High 70°, low 44°.
0Gillum, Wednesday, 21 October
Clear. High 69°, low 47°.
0Gillum, Thursday, 22 October
Clear. High 69°, low 51°.
0Gillum, Friday, 23 October
Clear. High 67°, low 50°.
0
Gillum, Saturday, 24 October
Overcast. High 67°, low 49°.
0Gillum, Sunday, 25 October
Overcast. High 71°, low 59°.
0Gillum, Monday, 26 October
Overcast. High 72°, low 52°.
0.02
Gillum, Tuesday, 27 October
Light rain. High 65°, low 47°.
0.02Gillum, Wednesday, 28 October
Light rain. High 47°, low 35°.
0Gillum, Thursday, 29 October
Clear. High 47°, low 31°.
0Gillum, Friday, 30 October
Clear. High 51°, low 31°.
0Gillum, Saturday, 31 October
Overcast. High 56°, low 33°.
0Gillum, Sunday, 1 November
Overcast. High 65°, low 46°.
0Gillum, Monday, 2 November
Overcast. High 68°, low 51°.
0.52Gillum, Tuesday, 3 November
Rain. High 60°, low 53°.
0.09
Gillum, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Gillum, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Gillum, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Gillum, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04
Gillum, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14
Gillum, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Gillum, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Gillum, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Gillum, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Gillum, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Gillum, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Gillum, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Gillum, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Gillum, Tuesday, 17 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 Gillum, 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 Gillum, 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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