As of 22:55 EST

Weather in South Acton, MA

34°Current weather

South Acton, Friday, 13 November, 22:55

Clear. Feels like 31°. High 42°, low 34°.

Pressure29.68 inHg
Wind3.4 mph NW
Humidity85%
Visibility6.2 mi
Dew point30°

Monthly outlook for South Acton, MA: average high 49.7°, average low 34.2°. That is 2.2° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 19 November (61.3°), the coolest 28 November (27.3°).

49.7°/34.2°
Average high / low
+2.2°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 November – 22 November52.1°46.4°+3.2°
23 November – 2 December45.8°44.1°+0.9°
3 December – 12 Decemberat normal39.5°—

November records over 66 years

76.1°6 November 2024All-time high
3°24 November 1989All-time low

Climate normals and records are computed from the nearest reference point — Groton (12 mi).

Sat, 1443° / 32°0Overcast
43 °Overcast

South Acton, Saturday, 14 November

Overcast. High 43°, low 32°.

Pressure29.68 inHg
Wind7.3 mph NW
Humidity61%
Visibility6.2 mi
Dew point27°
Sun, 1545° / 35°0Partly cloudy
45 °Partly cloudy

South Acton, Sunday, 15 November

Partly cloudy. High 45°, low 35°.

Pressure30.03 inHg
Wind11.5 mph NW
Humidity56%
Visibility6.2 mi
Dew point27°
Mon, 1646° / 33°0Overcast
46 °Overcast

South Acton, Monday, 16 November

Overcast. High 46°, low 33°.

Pressure30.33 inHg
Wind7.9 mph NW
Humidity60%
Visibility6.2 mi
Dew point30°
Tue, 1752° / 30°0Clear
52 °Clear

South Acton, Tuesday, 17 November

Clear. High 52°, low 30°.

Pressure30.39 inHg
Wind6 mph W
Humidity52%
Visibility6.2 mi
Dew point33°
Wed, 1858° / 37°0Clear
58 °Clear

South Acton, Wednesday, 18 November

Clear. High 58°, low 37°.

Pressure30.39 inHg
Wind6.6 mph W
Humidity58%
Visibility—
Dew point35°
Thu, 1961° / 38°0Clear
61 °Clear

South Acton, Thursday, 19 November

Clear. High 61°, low 38°.

Pressure30.36 inHg
Wind5.5 mph W
Humidity44%
Visibility—
Dew point31°
Fri, 2061° / 43°0Overcast
61 °Overcast

South Acton, Friday, 20 November

Overcast. High 61°, low 43°.

Pressure30.27 inHg
Wind7.9 mph NW
Humidity60%
Visibility—
Dew point41°
Sat, 2157° / 41°0Clear
57 °Clear

South Acton, Saturday, 21 November

Clear. High 57°, low 41°.

Pressure30.33 inHg
Wind5.5 mph E
Humidity69%
Visibility—
Dew point41°
Sun, 2257° / 41°0Clear
57 °Clear

South Acton, Sunday, 22 November

Clear. High 57°, low 41°.

Pressure29.94 inHg
Wind3.9 mph S
Humidity72%
Visibility—
Dew point42°
Mon, 2361° / 38°0.01Light rain
61 °Light rain

South Acton, Monday, 23 November

Light rain. High 61°, low 38°.

Pressure29.74 inHg
Wind11.2 mph SW
Humidity75%
Visibility—
Dew point49°
Tue, 2445° / 31°0Overcast
45 °Overcast

South Acton, Tuesday, 24 November

Overcast. High 45°, low 31°.

Pressure29.88 inHg
Wind4.8 mph W
Humidity53%
Visibility—
Dew point23°
Wed, 2538° / 30°0Clear
38 °Clear

South Acton, Wednesday, 25 November

Clear. High 38°, low 30°.

Pressure29.85 inHg
Wind13.5 mph W
Humidity45%
Visibility—
Dew point16°
Thu, 2643° / 30°0Overcast
43 °Overcast

South Acton, Thursday, 26 November

Overcast. High 43°, low 30°.

Pressure30.18 inHg
Wind12.1 mph SW
Humidity47%
Visibility—
Dew point19°
Fri, 2743° / 28°0Clear
43 °Clear

South Acton, Friday, 27 November

Clear. High 43°, low 28°.

Pressure30.21 inHg
Wind12.2 mph W
Humidity57%
Visibility—
Dew point25°
Sat, 2844° / 27°0Mostly clear
44 °Mostly clear

South Acton, Saturday, 28 November

Mostly clear. High 44°, low 27°.

Pressure30.50 inHg
Wind7.5 mph S
Humidity31%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2944° / 31°0.07Climate normal
44 °Climate normal

South Acton, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (2011)
Record low10° (2014)
Mon, 3043° / 30°0.1Climate normal
43 °Climate normal

South Acton, Monday, 30 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.1 in
Chance of precipitation28%
Record high62° (2006)
Record low17° (2013)
Tue, 0143° / 30°0.11Climate normal
43 °Climate normal

South Acton, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.11 in
Chance of precipitation32%
Record high65° (2001)
Record low12° (1989)
Wed, 0242° / 29°0.11Climate normal
42 °Climate normal

South Acton, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation23%
Record high63° (2006)
Record low10° (1989)
Thu, 0342° / 28°0.15Climate normal
42 °Climate normal

South Acton, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (2009)
Record low7° (1976)
Fri, 0441° / 27°0.11Climate normal
41 °Climate normal

South Acton, Friday, 4 December

Climate normal for this date — 60-year average.

Average high41°
Average low27°
Average precipitation0.11 in
Chance of precipitation25%
Record high64° (1982)
Record low7° (1989)
Sat, 0539° / 27°0.14Climate normal
39 °Climate normal

South Acton, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.14 in
Chance of precipitation30%
Record high63° (2001)
Record low2° (2025)
Sun, 0641° / 28°0.15Climate normal
41 °Climate normal

South Acton, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.15 in
Chance of precipitation42%
Record high67° (2001)
Record low9° (2007)
Mon, 0740° / 26°0.13Climate normal
40 °Climate normal

South Acton, Monday, 7 December

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.13 in
Chance of precipitation32%
Record high67° (1998)
Record low1° (1964)
Tue, 0837° / 24°0.09Climate normal
37 °Climate normal

South Acton, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation25%
Record high56° (2022)
Record low-7° (1964)
Wed, 0939° / 23°0.17Climate normal
39 °Climate normal

South Acton, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.17 in
Chance of precipitation33%
Record high57° (1991)
Record low2° (2025)
Thu, 1039° / 25°0.07Climate normal
39 °Climate normal

South Acton, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high39°
Average low25°
Average precipitation0.07 in
Chance of precipitation37%
Record high61° (2023)
Record low1° (1968)
Fri, 1139° / 25°0.19Climate normal
39 °Climate normal

South Acton, Friday, 11 December

Climate normal for this date — 60-year average.

Average high39°
Average low25°
Average precipitation0.19 in
Chance of precipitation38%
Record high58° (2021)
Record low-2° (1977)
Sat, 1238° / 24°0.18Climate normal
38 °Climate normal

South Acton, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high38°
Average low24°
Average precipitation0.18 in
Chance of precipitation35%
Record high60° (1979)
Record low-6° (1977)

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.