Weather in West Acton, MA
West Acton, Wednesday, 21 October, 17:13
Clear. Feels like 51°. High 57°, low 42°.
Monthly outlook for West Acton, MA: average high 58.3°, average low 39.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (66.7°), the coolest 5 November (30.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 58.7° | 56.8° | +1.1° |
| 31 October – 9 November | 57.6° | 53.5° | +2.3° |
| 10 November – 19 November | at normal | 48° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Groton (11 mi).
0West Acton, Thursday, 22 October
Clear. High 66°, low 43°.
0West Acton, Friday, 23 October
Clear. High 54°, low 35°.
0West Acton, Saturday, 24 October
Clear. High 59°, low 33°.
0West Acton, Sunday, 25 October
Clear. High 64°, low 36°.
0West Acton, Monday, 26 October
Clear. High 67°, low 40°.
0
West Acton, Tuesday, 27 October
Mostly clear. High 57°, low 41°.
0
West Acton, Wednesday, 28 October
Overcast. High 51°, low 38°.
0.07
West Acton, Thursday, 29 October
Light rain. High 66°, low 43°.
0West Acton, Friday, 30 October
Clear. High 47°, low 34°.
0.01West Acton, Saturday, 31 October
Light rain. High 54°, low 36°.
0West Acton, Sunday, 1 November
Overcast. High 64°, low 40°.
0West Acton, Monday, 2 November
Overcast. High 65°, low 49°.
0.79West Acton, Tuesday, 3 November
Rain. High 62°, low 52°.
0.67West Acton, Wednesday, 4 November
Heavy rain. High 53°, low 34°.
0West Acton, Thursday, 5 November
Clear. High 48°, low 30°.
0.13
West Acton, Friday, 6 November
Climate normal for this date — 60-year average.
0.05
West Acton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09West Acton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1West Acton, Monday, 9 November
Climate normal for this date — 60-year average.
0.15West Acton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11West Acton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.13West Acton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.15West Acton, Friday, 13 November
Climate normal for this date — 60-year average.
0.12West Acton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12West Acton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15West Acton, Monday, 16 November
Climate normal for this date — 60-year average.
0.13West Acton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07West Acton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06West Acton, Thursday, 19 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 Acton, 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 Acton, 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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