Weather in Shirley, IL
Shirley, Sunday, 18 October, 17:24
Clear. Feels like 60°. High 63°, low 38°.
Monthly outlook for Shirley, IL: average high 68°, average low 49.5°. That is 4.6° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 29 October (74.2°), the coolest 18 October (38.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 68.4° | 60.6° | +4.3° |
| 28 October – 6 November | 67.5° | 56.8° | +5.9° |
| 7 November – 16 November | at normal | 51.4° | — |
October records over 66 years
0Shirley, Monday, 19 October
Clear. High 67°, low 39°.
0Shirley, Tuesday, 20 October
Clear. High 67°, low 42°.
0Shirley, Wednesday, 21 October
Clear. High 68°, low 46°.
0Shirley, Thursday, 22 October
Clear. High 67°, low 47°.
0
Shirley, Friday, 23 October
Mostly clear. High 67°, low 49°.
0
Shirley, Saturday, 24 October
Partly cloudy. High 74°, low 51°.
0
Shirley, Sunday, 25 October
Overcast. High 72°, low 58°.
0Shirley, Monday, 26 October
Overcast. High 68°, low 56°.
0Shirley, Tuesday, 27 October
Overcast. High 71°, low 53°.
0Shirley, Wednesday, 28 October
Overcast. High 73°, low 57°.
0Shirley, Thursday, 29 October
Overcast. High 74°, low 57°.
0.39
Shirley, Friday, 30 October
Rain. High 66°, low 53°.
0Shirley, Saturday, 31 October
Overcast. High 64°, low 46°.
0.78Shirley, Sunday, 1 November
Rain. High 65°, low 56°.
0.84Shirley, Monday, 2 November
Rain. High 63°, low 44°.
0.09Shirley, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Shirley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Shirley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Shirley, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Shirley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Shirley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14
Shirley, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Shirley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Shirley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Shirley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Shirley, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Shirley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Shirley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Shirley, Monday, 16 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 Shirley, 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 Shirley, 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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