Weather in Mattoon, WI
Mattoon, Thursday, 8 October, 04:56
Clear. Feels like 38°. High 64°, low 42°.
Monthly outlook for Mattoon, WI: average high 65.3°, average low 45.8°. That is 6.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (78.8°), the coolest 18 October (37.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 66.1° | 54.9° | +6.2° |
| 18 October – 27 October | 64.1° | 50.6° | +7.5° |
| 28 October – 6 November | at normal | 46.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Antigo (11 mi).
0
Mattoon, Friday, 9 October
Partly cloudy. High 67°, low 39°.
0
Mattoon, Saturday, 10 October
Clear. High 79°, low 52°.
0Mattoon, Sunday, 11 October
Clear. High 77°, low 58°.
0.03
Mattoon, Monday, 12 October
Light rain. High 77°, low 58°.
0
Mattoon, Tuesday, 13 October
Overcast. High 61°, low 45°.
0.08Mattoon, Wednesday, 14 October
Light rain. High 52°, low 38°.
0.13Mattoon, Thursday, 15 October
Light rain. High 76°, low 52°.
0Mattoon, Friday, 16 October
Partly cloudy. High 56°, low 44°.
0Mattoon, Saturday, 17 October
Overcast. High 51°, low 40°.
0.04Mattoon, Sunday, 18 October
Light rain. High 57°, low 38°.
0Mattoon, Monday, 19 October
Overcast. High 62°, low 43°.
0Mattoon, Tuesday, 20 October
Overcast. High 61°, low 48°.
0Mattoon, Wednesday, 21 October
Partly cloudy. High 65°, low 44°.
0.13Mattoon, Thursday, 22 October
Rain. High 66°, low 47°.
0Mattoon, Friday, 23 October
Partly cloudy. High 73°, low 46°.
0.14Mattoon, Saturday, 24 October
Climate normal for this date — 60-year average.
0.07Mattoon, Sunday, 25 October
Climate normal for this date — 60-year average.
0.06Mattoon, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Mattoon, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.08Mattoon, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Mattoon, Thursday, 29 October
Climate normal for this date — 60-year average.
0.07Mattoon, Friday, 30 October
Climate normal for this date — 60-year average.
0.08Mattoon, Saturday, 31 October
Climate normal for this date — 60-year average.
0.13
Mattoon, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Mattoon, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Mattoon, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Mattoon, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Mattoon, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Mattoon, Friday, 6 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 Mattoon, WI 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 Mattoon, WI 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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