Weather in Matteson, IL
Matteson, Friday, 9 October, 10:32
Overcast. Feels like 60°. High 76°, low 51°.
Monthly outlook for Matteson, IL: average high 64.4°, average low 49.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 12 October (81°), the coolest 18 October (34.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 67.3° | 62.6° | +2.6° |
| 19 October – 28 October | 59.6° | 58.3° | +0.7° |
| 29 October – 7 November | at normal | 54.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arbury Hills (5 mi).
0Matteson, Saturday, 10 October
Overcast. High 77°, low 59°.
0.29
Matteson, Sunday, 11 October
Rain. High 73°, low 57°.
0
Matteson, Monday, 12 October
Partly cloudy. High 81°, low 61°.
0.01Matteson, Tuesday, 13 October
Light rain. High 75°, low 61°.
0Matteson, Wednesday, 14 October
Overcast. High 64°, low 57°.
0.28Matteson, Thursday, 15 October
Rain. High 59°, low 53°.
0.63Matteson, Friday, 16 October
Rain. High 68°, low 44°.
0Matteson, Saturday, 17 October
Overcast. High 47°, low 36°.
0Matteson, Sunday, 18 October
Partly cloudy. High 52°, low 35°.
0Matteson, Monday, 19 October
Overcast. High 61°, low 40°.
0
Matteson, Tuesday, 20 October
Clear. High 66°, low 46°.
0Matteson, Wednesday, 21 October
Overcast. High 68°, low 51°.
0.46Matteson, Thursday, 22 October
Rain. High 58°, low 54°.
0.01Matteson, Friday, 23 October
Light rain. High 57°, low 43°.
0
Matteson, Saturday, 24 October
Mostly clear. High 48°, low 38°.
0.13Matteson, Sunday, 25 October
Climate normal for this date — 60-year average.
0.11Matteson, Monday, 26 October
Climate normal for this date — 60-year average.
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.
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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