Monthly outlook for South Acton, MA: average high 59.1°, average low 42.8°. That is 4.3° above the climate normal for November. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 3 November (72.4°), the coolest 13 November (27.9°).
59.1°/42.8°
Average high / low
+4.3°
Above normal
4 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
62.5°
53.2°
+5.2°
11 November – 20 November
53.3°
47.4°
+3.3°
21 November – 30 November
at normal
44.5°
—
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).
Mon, 0270° / 39°0
70 °
South Acton, Monday, 2 November
Overcast. High 70°, low 39°.
Pressure30.30 inHg
Wind8.2 mph SW
Humidity32%
Visibility6.2 mi
Dew point37°
Tue, 0372° / 45°0
72 °
South Acton, Tuesday, 3 November
Overcast. High 72°, low 45°.
Pressure30.24 inHg
Wind4.3 mph SW
Humidity40%
Visibility6.2 mi
Dew point46°
Wed, 0472° / 53°0
72 °
South Acton, Wednesday, 4 November
Clear. High 72°, low 53°.
Pressure30.06 inHg
Wind9.8 mph SW
Humidity46%
Visibility6.2 mi
Dew point49°
Thu, 0568° / 54°0.01
68 °
South Acton, Thursday, 5 November
Light rain. High 68°, low 54°.
Pressure29.94 inHg
Wind8.2 mph S
Humidity79%
Visibility6.2 mi
Dew point60°
Fri, 0667° / 60°0.58
67 °
South Acton, Friday, 6 November
Rain. High 67°, low 60°.
Pressure29.88 inHg
Wind9.1 mph SE
Humidity95%
Visibility—
Dew point62°
Sat, 0760° / 54°1.74
60 °
South Acton, Saturday, 7 November
Heavy rain. High 60°, low 54°.
Pressure29.50 inHg
Wind9.9 mph NW
Humidity99%
Visibility—
Dew point59°
Sun, 0860° / 47°0
60 °
South Acton, Sunday, 8 November
Mostly clear. High 60°, low 47°.
Pressure29.62 inHg
Wind9.8 mph W
Humidity64%
Visibility—
Dew point45°
Mon, 0949° / 43°0.28
49 °
South Acton, Monday, 9 November
Light rain. High 49°, low 43°.
Pressure29.53 inHg
Wind8.1 mph W
Humidity91%
Visibility—
Dew point46°
Tue, 1051° / 39°0.01
51 °
South Acton, Tuesday, 10 November
Light rain. High 51°, low 39°.
Pressure29.77 inHg
Wind13.4 mph W
Humidity64%
Visibility—
Dew point37°
Wed, 1150° / 34°0
50 °
South Acton, Wednesday, 11 November
Clear. High 50°, low 34°.
Pressure30.06 inHg
Wind9.8 mph NW
Humidity50%
Visibility—
Dew point25°
Thu, 1245° / 29°0.04
45 °
South Acton, Thursday, 12 November
Light rain. High 45°, low 29°.
Pressure29.68 inHg
Wind14 mph NW
Humidity88%
Visibility—
Dew point41°
Fri, 1341° / 28°0
41 °
South Acton, Friday, 13 November
Clear. High 41°, low 28°.
Pressure30.03 inHg
Wind11.6 mph NW
Humidity31%
Visibility—
Dew point7°
Sat, 1456° / 37°0.02
56 °
South Acton, Saturday, 14 November
Light snow. High 56°, low 37°.
Pressure29.77 inHg
Wind10.5 mph W
Humidity45%
Visibility—
Dew point27°
Sun, 1561° / 43°0
61 °
South Acton, Sunday, 15 November
Overcast. High 61°, low 43°.
Pressure29.74 inHg
Wind9 mph SW
Humidity59%
Visibility—
Dew point41°
Mon, 1668° / 51°0
68 °
South Acton, Monday, 16 November
Overcast. High 68°, low 51°.
Pressure29.80 inHg
Wind7.7 mph SW
Humidity71%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1747° / 32°0.13
47 °
South Acton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation30%
Record high64° (2006)
Record low11° (1972)
Wed, 1847° / 33°0.07
47 °
South Acton, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (1963)
Record low23° (2020)
Thu, 1946° / 32°0.06
46 °
South Acton, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation18%
Record high64° (1991)
Record low13° (1986)
Fri, 2046° / 32°0.12
46 °
South Acton, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation33%
Record high68° (1991)
Record low7° (1986)
Sat, 2145° / 31°0.12
45 °
South Acton, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.12 in
Chance of precipitation32%
Record high60° (1991)
Record low15° (1967)
Sun, 2244° / 31°0.15
44 °
South Acton, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.15 in
Chance of precipitation38%
Record high62° (1999)
Record low4° (2018)
Mon, 2344° / 30°0.14
44 °
South Acton, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.14 in
Chance of precipitation25%
Record high66° (1999)
Record low6° (2018)
Tue, 2444° / 31°0.07
44 °
South Acton, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1979)
Record low3° (1989)
Wed, 2545° / 31°0.14
45 °
South Acton, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.14 in
Chance of precipitation30%
Record high65° (1979)
Record low15° (1997)
Thu, 2646° / 32°0.18
46 °
South Acton, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.18 in
Chance of precipitation45%
Record high63° (1979)
Record low17° (1978)
Fri, 2746° / 31°0.12
46 °
South Acton, Friday, 27 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.12 in
Chance of precipitation38%
Record high62° (1979)
Record low14° (1978)
Sat, 2846° / 32°0.18
46 °
South Acton, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.18 in
Chance of precipitation35%
Record high65° (1990)
Record low14° (2002)
Sun, 2944° / 31°0.07
44 °
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°0.1
43 °
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)
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.