Weather in South Acton, MA
South Acton, Saturday, 7 November, 22:28
Light rain. Feels like 47°. High 59°, low 50°.
Monthly outlook for South Acton, MA: average high 51.2°, average low 39.2°. That is 1.8° above the climate normal for November. Precipitation is expected on 5 days (about 4.5 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 21 November (62.6°), the coolest 18 November (29.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 November – 16 November | 50° | 49.4° | +0.3° |
| 17 November – 26 November | 53.2° | 45.2° | +4.4° |
| 27 November – 6 December | at normal | 42.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Groton (12 mi).
0.28South Acton, Sunday, 8 November
Rain. High 53°, low 44°.
0.02South Acton, Monday, 9 November
Light rain. High 55°, low 44°.
0
South Acton, Tuesday, 10 November
Overcast. High 53°, low 39°.
0South Acton, Wednesday, 11 November
Overcast. High 54°, low 40°.
0South Acton, Thursday, 12 November
Overcast. High 50°, low 34°.
1.25South Acton, Friday, 13 November
Rain. High 43°, low 35°.
1.48South Acton, Saturday, 14 November
Heavy rain. High 48°, low 43°.
0.02South Acton, Sunday, 15 November
Light rain. High 42°, low 38°.
0.01South Acton, Monday, 16 November
Light rain. High 43°, low 34°.
0
South Acton, Tuesday, 17 November
Clear. High 43°, low 33°.
0South Acton, Wednesday, 18 November
Clear. High 48°, low 30°.
0South Acton, Thursday, 19 November
Overcast. High 51°, low 32°.
0South Acton, Friday, 20 November
Clear. High 57°, low 39°.
0South Acton, Saturday, 21 November
Overcast. High 63°, low 44°.
0.92South Acton, Sunday, 22 November
Heavy rain. High 57°, low 50°.
0.14
South Acton, Monday, 23 November
Climate normal for this date — 60-year average.
0.07South Acton, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.14South Acton, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.18
South Acton, Thursday, 26 November
Climate normal for this date — 60-year average.
0.12South Acton, Friday, 27 November
Climate normal for this date — 60-year average.
0.18South Acton, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07South Acton, Sunday, 29 November
Climate normal for this date — 60-year average.
0.1South Acton, Monday, 30 November
Climate normal for this date — 60-year average.
0.11South Acton, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11South Acton, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.15South Acton, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11South Acton, Friday, 4 December
Climate normal for this date — 60-year average.
0.14South Acton, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15South Acton, Sunday, 6 December
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 South 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 South 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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