Weather in Harwich, MA
Harwich, Saturday, 31 October, 04:02
Clear. Feels like 50°. High 54°, low 42°.
Monthly outlook for Harwich, MA: average high 56.4°, average low 48.8°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 5 November (65.3°), the coolest 1 November (37.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 58.6° | 53.9° | +2.6° |
| 10 November – 19 November | 52.8° | 50.4° | +1.3° |
| 20 November – 29 November | at normal | 48° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chatham (5 mi).
0
Harwich, Sunday, 1 November
Clear. High 58°, low 38°.
0
Harwich, Monday, 2 November
Mostly clear. High 62°, low 48°.
0
Harwich, Tuesday, 3 November
Overcast. High 63°, low 53°.
0Harwich, Wednesday, 4 November
Clear. High 63°, low 53°.
0
Harwich, Thursday, 5 November
Partly cloudy. High 65°, low 58°.
0.07
Harwich, Friday, 6 November
Light rain. High 60°, low 59°.
0.22Harwich, Saturday, 7 November
Light rain. High 59°, low 55°.
0.07Harwich, Sunday, 8 November
Light rain. High 53°, low 49°.
0Harwich, Monday, 9 November
Mostly clear. High 49°, low 46°.
0Harwich, Tuesday, 10 November
Clear. High 53°, low 44°.
0Harwich, Wednesday, 11 November
Mostly clear. High 55°, low 48°.
0Harwich, Thursday, 12 November
Overcast. High 55°, low 51°.
0.03Harwich, Friday, 13 November
Light rain. High 54°, low 48°.
0.01Harwich, Saturday, 14 November
Light rain. High 54°, low 46°.
0Harwich, Sunday, 15 November
Overcast. High 45°, low 42°.
0.17
Harwich, Monday, 16 November
Climate normal for this date — 60-year average.
0.17Harwich, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Harwich, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Harwich, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Harwich, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Harwich, Saturday, 21 November
Climate normal for this date — 60-year average.
0.22Harwich, Sunday, 22 November
Climate normal for this date — 60-year average.
0.17Harwich, Monday, 23 November
Climate normal for this date — 60-year average.
0.14Harwich, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Harwich, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Harwich, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Harwich, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Harwich, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Harwich, Sunday, 29 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 Harwich, 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 Harwich, 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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