Weather in West Chatham, MA
West Chatham, Tuesday, 20 October, 11:12
Overcast. Feels like 57°. High 60°, low 41°.
Monthly outlook for West Chatham, MA: average high 55°, average low 45.7°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 27 October (62.3°), the coolest 21 October (39.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 56.4° | 56.5° | -0° |
| 30 October – 8 November | 52.7° | 54.1° | -0.8° |
| 9 November – 18 November | at normal | 50.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chatham (1 mi).
0.45
West Chatham, Wednesday, 21 October
Rain. High 55°, low 40°.
0.16West Chatham, Thursday, 22 October
Rain. High 57°, low 43°.
0West Chatham, Friday, 23 October
Overcast. High 51°, low 46°.
0
West Chatham, Saturday, 24 October
Clear. High 51°, low 47°.
0West Chatham, Sunday, 25 October
Clear. High 57°, low 45°.
0West Chatham, Monday, 26 October
Overcast. High 62°, low 51°.
0West Chatham, Tuesday, 27 October
Overcast. High 62°, low 55°.
0.06West Chatham, Wednesday, 28 October
Light rain. High 59°, low 45°.
0West Chatham, Thursday, 29 October
Clear. High 48°, low 41°.
0.05West Chatham, Friday, 30 October
Light rain. High 58°, low 50°.
0.01West Chatham, Saturday, 31 October
Light rain. High 48°, low 43°.
0West Chatham, Sunday, 1 November
Overcast. High 55°, low 44°.
0West Chatham, Monday, 2 November
Clear. High 55°, low 49°.
0
West Chatham, Tuesday, 3 November
Mostly clear. High 49°, low 46°.
0West Chatham, Wednesday, 4 November
Mostly clear. High 52°, low 46°.
0.17
West Chatham, Thursday, 5 November
Climate normal for this date — 60-year average.
0.15West Chatham, Friday, 6 November
Climate normal for this date — 60-year average.
0.08
West Chatham, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16West Chatham, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11West Chatham, Monday, 9 November
Climate normal for this date — 60-year average.
0.2West Chatham, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13West Chatham, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17West Chatham, Thursday, 12 November
Climate normal for this date — 60-year average.
0.22West Chatham, Friday, 13 November
Climate normal for this date — 60-year average.
0.11West Chatham, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11West Chatham, Sunday, 15 November
Climate normal for this date — 60-year average.
0.17West Chatham, Monday, 16 November
Climate normal for this date — 60-year average.
0.17West Chatham, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1West Chatham, Wednesday, 18 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 West Chatham, MA 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 West Chatham, MA 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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