Weather in Matteson, IL
Matteson, Sunday, 11 October, 15:30
Clear. Feels like 79°. High 79°, low 54°.
Monthly outlook for Matteson, IL: average high 64.8°, average low 51.8°. That is 2.4° above the climate normal for October. Precipitation is expected on 4 days (about 3.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 12 October (84.8°), the coolest 18 October (34.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 66.6° | 61.5° | +2.8° |
| 21 October – 30 October | 61.8° | 57.9° | +2.1° |
| 31 October – 9 November | at normal | 53.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arbury Hills (5 mi).
0Matteson, Monday, 12 October
Clear. High 85°, low 63°.
0Matteson, Tuesday, 13 October
Clear. High 81°, low 67°.
0.67
Matteson, Wednesday, 14 October
Heavy rain. High 68°, low 59°.
1.37Matteson, Thursday, 15 October
Rain. High 64°, low 57°.
0
Matteson, Friday, 16 October
Partly cloudy. High 58°, low 48°.
0Matteson, Saturday, 17 October
Clear. High 49°, low 39°.
0Matteson, Sunday, 18 October
Clear. High 56°, low 35°.
0Matteson, Monday, 19 October
Clear. High 64°, low 43°.
0
Matteson, Tuesday, 20 October
Overcast. High 63°, low 50°.
0Matteson, Wednesday, 21 October
Overcast. High 66°, low 54°.
0.04Matteson, Thursday, 22 October
Light rain. High 72°, low 62°.
0.57Matteson, Friday, 23 October
Rain. High 65°, low 60°.
1.17Matteson, Saturday, 24 October
Rain. High 61°, low 51°.
0Matteson, Sunday, 25 October
Overcast. High 53°, low 46°.
0Matteson, Monday, 26 October
Overcast. High 54°, low 40°.
0.09Matteson, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Matteson, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Matteson, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Matteson, Friday, 30 October
Climate normal for this date — 60-year average.
0.15
Matteson, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Matteson, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Matteson, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Matteson, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Matteson, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Matteson, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Matteson, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Matteson, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Matteson, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14Matteson, Monday, 9 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 Matteson, 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 Matteson, 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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