Weather in Chatham, MI
Chatham, Sunday, 11 October, 17:00
Clear. Feels like 72°. High 75°, low 58°.
Monthly outlook for Chatham, MI: average high 55.9°, average low 45.8°. That is 1.9° above the climate normal for October. Precipitation is expected on 8 days (about 1.6 inches), against a normal of 8 days and 2.5 inches. The warmest day looks like 11 October (75°), the coolest 26 October (35.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 56.3° | 53.6° | +1.5° |
| 21 October – 30 October | 55.3° | 50° | +3° |
| 31 October – 9 November | at normal | 45.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Munising (15 mi).
0
Chatham, Monday, 12 October
Overcast. High 65°, low 51°.
0.52
Chatham, Tuesday, 13 October
Heavy rain. High 54°, low 49°.
0.05Chatham, Wednesday, 14 October
Light rain. High 52°, low 50°.
0.07Chatham, Thursday, 15 October
Light rain. High 54°, low 45°.
0.37Chatham, Friday, 16 October
Rain. High 49°, low 44°.
0Chatham, Saturday, 17 October
Overcast. High 44°, low 36°.
0Chatham, Sunday, 18 October
Overcast. High 55°, low 36°.
0Chatham, Monday, 19 October
Clear. High 56°, low 43°.
0
Chatham, Tuesday, 20 October
Mostly clear. High 59°, low 41°.
0.13Chatham, Wednesday, 21 October
Light rain. High 58°, low 49°.
0.01Chatham, Thursday, 22 October
Light rain. High 65°, low 53°.
0.2Chatham, Friday, 23 October
Light rain. High 60°, low 58°.
0.05Chatham, Saturday, 24 October
Light rain. High 54°, low 43°.
0.03Chatham, Sunday, 25 October
Light rain. High 49°, low 41°.
0.17
Chatham, Monday, 26 October
Snow. High 46°, low 35°.
0.13Chatham, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.1
Chatham, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.09Chatham, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Chatham, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Chatham, Saturday, 31 October
Climate normal for this date — 60-year average.
0.15Chatham, Sunday, 1 November
Climate normal for this date — 60-year average.
0.15Chatham, Monday, 2 November
Climate normal for this date — 60-year average.
0.11Chatham, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Chatham, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Chatham, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11Chatham, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Chatham, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Chatham, Sunday, 8 November
Climate normal for this date — 60-year average.
0.15Chatham, 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 Chatham, MI 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 Chatham, MI 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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