Weather in Olympia Fields, IL
Olympia Fields, Wednesday, 14 October, 20:15
Overcast. Feels like 60°. High 66°, low 60°.
Monthly outlook for Olympia Fields, IL: average high 63.1°, average low 49.5°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 24 October (76.9°), the coolest 17 October (39.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 64.2° | 60.3° | +2.2° |
| 24 October – 2 November | 61.2° | 56.6° | +2.6° |
| 3 November – 12 November | at normal | 51.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arbury Hills (8 mi).
0.41
Olympia Fields, Thursday, 15 October
Heavy rain. High 68°, low 59°.
0.09Olympia Fields, Friday, 16 October
Rain. High 62°, low 47°.
0
Olympia Fields, Saturday, 17 October
Partly cloudy. High 55°, low 40°.
0
Olympia Fields, Sunday, 18 October
Clear. High 60°, low 42°.
0Olympia Fields, Monday, 19 October
Clear. High 62°, low 40°.
0
Olympia Fields, Tuesday, 20 October
Mostly clear. High 68°, low 47°.
0Olympia Fields, Wednesday, 21 October
Clear. High 71°, low 54°.
0.19Olympia Fields, Thursday, 22 October
Light rain. High 64°, low 62°.
0.01Olympia Fields, Friday, 23 October
Light rain. High 66°, low 60°.
0.02Olympia Fields, Saturday, 24 October
Light rain. High 77°, low 54°.
0Olympia Fields, Sunday, 25 October
Light rain. High 57°, low 47°.
0Olympia Fields, Monday, 26 October
Clear. High 54°, low 43°.
0Olympia Fields, Tuesday, 27 October
Overcast. High 57°, low 42°.
0Olympia Fields, Wednesday, 28 October
Overcast. High 62°, low 47°.
0Olympia Fields, Thursday, 29 October
Light rain. High 61°, low 49°.
0.11Olympia Fields, Friday, 30 October
Climate normal for this date — 60-year average.
0.15
Olympia Fields, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Olympia Fields, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Olympia Fields, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Olympia Fields, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Olympia Fields, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Olympia Fields, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Olympia Fields, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Olympia Fields, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Olympia Fields, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14Olympia Fields, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Olympia Fields, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Olympia Fields, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Olympia Fields, Thursday, 12 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 Olympia Fields, 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 Olympia Fields, 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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