Weather in Harthaven, MA
Harthaven, Sunday, 18 October, 16:28
Clear. Feels like 50°. High 54°, low 32°.
Monthly outlook for Harthaven, MA: average high 56.9°, average low 49.6°. That is 0.2° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 1 November (62.8°), the coolest 18 October (32°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 55.7° | 58° | -1.3° |
| 28 October – 6 November | 58.9° | 55.7° | +1.8° |
| 7 November – 16 November | at normal | 52.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Edgartown (5 mi).
0
Harthaven, Monday, 19 October
Overcast. High 56°, low 43°.
0Harthaven, Tuesday, 20 October
Overcast. High 57°, low 50°.
0Harthaven, Wednesday, 21 October
Overcast. High 55°, low 53°.
0Harthaven, Thursday, 22 October
Clear. High 60°, low 49°.
0
Harthaven, Friday, 23 October
Partly cloudy. High 53°, low 45°.
0Harthaven, Saturday, 24 October
Clear. High 51°, low 46°.
0Harthaven, Sunday, 25 October
Clear. High 55°, low 50°.
0Harthaven, Monday, 26 October
Clear. High 61°, low 57°.
0Harthaven, Tuesday, 27 October
Clear. High 56°, low 49°.
0Harthaven, Wednesday, 28 October
Clear. High 53°, low 46°.
0Harthaven, Thursday, 29 October
Clear. High 56°, low 48°.
0Harthaven, Friday, 30 October
Overcast. High 61°, low 54°.
0Harthaven, Saturday, 31 October
Clear. High 62°, low 59°.
0.13
Harthaven, Sunday, 1 November
Light rain. High 63°, low 61°.
0Harthaven, Monday, 2 November
Overcast. High 59°, low 53°.
0.22
Harthaven, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Harthaven, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Harthaven, Thursday, 5 November
Climate normal for this date — 60-year average.
0.15Harthaven, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Harthaven, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Harthaven, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Harthaven, Monday, 9 November
Climate normal for this date — 60-year average.
0.21Harthaven, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Harthaven, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.18Harthaven, Thursday, 12 November
Climate normal for this date — 60-year average.
0.23Harthaven, Friday, 13 November
Climate normal for this date — 60-year average.
0.12Harthaven, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Harthaven, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Harthaven, Monday, 16 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 Harthaven, 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 Harthaven, 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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