Weather in South Acton, MA
South Acton, Wednesday, 4 November, 04:00
Overcast. Feels like 53°. High 74°, low 54°.
Monthly outlook for South Acton, MA: average high 54.7°, average low 40.8°. That is 2.8° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 4 November (74.1°), the coolest 16 November (29°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 4 November – 13 November | 59.8° | 51.1° | +4.8° |
| 14 November – 23 November | 46.1° | 46.1° | +0° |
| 24 November – 3 December | at normal | 44° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Groton (12 mi).
0.1
South Acton, Thursday, 5 November
Rain. High 73°, low 60°.
0.1South Acton, Friday, 6 November
Rain. High 71°, low 59°.
0South Acton, Saturday, 7 November
Overcast. High 61°, low 56°.
0.2South Acton, Sunday, 8 November
Light rain. High 56°, low 45°.
0.01South Acton, Monday, 9 November
Light rain. High 50°, low 44°.
0
South Acton, Tuesday, 10 November
Partly cloudy. High 62°, low 44°.
0South Acton, Wednesday, 11 November
Overcast. High 52°, low 40°.
0
South Acton, Thursday, 12 November
Clear. High 47°, low 30°.
0South Acton, Friday, 13 November
Overcast. High 52°, low 33°.
0
South Acton, Saturday, 14 November
Mostly clear. High 44°, low 31°.
0South Acton, Sunday, 15 November
Clear. High 46°, low 31°.
0South Acton, Monday, 16 November
Overcast. High 46°, low 29°.
0South Acton, Tuesday, 17 November
Overcast. High 41°, low 30°.
0South Acton, Wednesday, 18 November
Partly cloudy. High 46°, low 29°.
0South Acton, Thursday, 19 November
Overcast. High 54°, low 36°.
0.12
South Acton, Friday, 20 November
Climate normal for this date — 60-year average.
0.12South Acton, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15South Acton, Sunday, 22 November
Climate normal for this date — 60-year average.
0.14South 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.
0.18South 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.
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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