Weather in Chatham, MI
Chatham, Monday, 19 October, 09:35
Clear. Feels like 31°. High 57°, low 36°.
Monthly outlook for Chatham, MI: average high 50.3°, average low 36.9°. That is 0.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 8 days and 2.2 inches. The warmest day looks like 20 October (65.4°), the coolest 29 October (29.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 55.3° | 50.6° | +2.6° |
| 29 October – 7 November | 42° | 46.7° | -2.6° |
| 8 November – 17 November | at normal | 41.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Munising (15 mi).
0Chatham, Tuesday, 20 October
Clear. High 65°, low 32°.
0
Chatham, Wednesday, 21 October
Overcast. High 64°, low 41°.
0Chatham, Thursday, 22 October
Clear. High 58°, low 43°.
0Chatham, Friday, 23 October
Clear. High 60°, low 41°.
0Chatham, Saturday, 24 October
Overcast. High 59°, low 48°.
0.02
Chatham, Sunday, 25 October
Light rain. High 61°, low 46°.
0Chatham, Monday, 26 October
Overcast. High 50°, low 39°.
0.04
Chatham, Tuesday, 27 October
Snow. High 44°, low 36°.
0.08Chatham, Wednesday, 28 October
Snow. High 34°, low 30°.
0.01Chatham, Thursday, 29 October
Light snow. High 44°, low 29°.
0Chatham, Friday, 30 October
Overcast. High 45°, low 33°.
0Chatham, Saturday, 31 October
Overcast. High 40°, low 31°.
0.24Chatham, Sunday, 1 November
Snow. High 39°, low 35°.
0
Chatham, Monday, 2 November
Partly cloudy. High 41°, low 35°.
0Chatham, Tuesday, 3 November
Clear. High 44°, low 34°.
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.
0.11
Chatham, 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.
0.2Chatham, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Chatham, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Chatham, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14Chatham, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Chatham, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Chatham, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Chatham, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Chatham, Tuesday, 17 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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