Monthly outlook for West Acton, MA: average high 61.6°, average low 45.1°. That is 4.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 30 October (70.6°), the coolest 28 October (30.5°).
61.6°/45.1°
Average high / low
+4.1°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
63.4°
55.4°
+4.5°
4 November – 13 November
58.6°
51.1°
+4.1°
14 November – 23 November
at normal
46.1°
—
October records over 66 years
85.8°5 October 2007All-time high
23.4°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Groton (11 mi).
Mon, 2669° / 35°0
69 °
West Acton, Monday, 26 October
Overcast. High 69°, low 35°.
Pressure30.15 inHg
Wind4.1 mph W
Humidity40%
Visibility6.2 mi
Dew point38°
Tue, 2752° / 36°0
52 °
West Acton, Tuesday, 27 October
Clear. High 52°, low 36°.
Pressure30.39 inHg
Wind4.8 mph N
Humidity49%
Visibility6.2 mi
Dew point27°
Wed, 2852° / 30°0
52 °
West Acton, Wednesday, 28 October
Mostly clear. High 52°, low 30°.
Pressure30.50 inHg
Wind1.4 mph S
Humidity50%
Visibility6.2 mi
Dew point26°
Thu, 2963° / 41°0
63 °
West Acton, Thursday, 29 October
Partly cloudy. High 63°, low 41°.
Pressure30.27 inHg
Wind11.5 mph SW
Humidity68%
Visibility—
Dew point44°
Fri, 3071° / 54°0
71 °
West Acton, Friday, 30 October
Clear. High 71°, low 54°.
Pressure30.09 inHg
Wind8.8 mph SW
Humidity60%
Visibility—
Dew point50°
Sat, 3162° / 46°0
62 °
West Acton, Saturday, 31 October
Clear. High 62°, low 46°.
Pressure30.33 inHg
Wind5.2 mph NW
Humidity51%
Visibility—
Dew point37°
Sun, 0167° / 48°0
67 °
West Acton, Sunday, 1 November
Overcast. High 67°, low 48°.
Pressure30.36 inHg
Wind6.4 mph SW
Humidity65%
Visibility—
Dew point48°
Mon, 0268° / 52°0
68 °
West Acton, Monday, 2 November
Overcast. High 68°, low 52°.
Pressure30.30 inHg
Wind10.1 mph SW
Humidity75%
Visibility—
Dew point54°
Tue, 0369° / 59°0.15
69 °
West Acton, Tuesday, 3 November
Light rain. High 69°, low 59°.
Pressure30.12 inHg
Wind7.7 mph SW
Humidity87%
Visibility—
Dew point60°
Wed, 0469° / 57°0.18
69 °
West Acton, Wednesday, 4 November
Light rain. High 69°, low 57°.
Pressure29.97 inHg
Wind9.7 mph S
Humidity87%
Visibility—
Dew point60°
Thu, 0562° / 50°0.13
62 °
West Acton, Thursday, 5 November
Light rain. High 62°, low 50°.
Pressure29.59 inHg
Wind7.9 mph W
Humidity98%
Visibility—
Dew point60°
Fri, 0659° / 46°0
59 °
West Acton, Friday, 6 November
Overcast. High 59°, low 46°.
Pressure29.50 inHg
Wind10.9 mph W
Humidity62%
Visibility—
Dew point43°
Sat, 0752° / 46°0
52 °
West Acton, Saturday, 7 November
Overcast. High 52°, low 46°.
Pressure29.53 inHg
Wind11.9 mph W
Humidity64%
Visibility—
Dew point40°
Sun, 0857° / 44°0
57 °
West Acton, Sunday, 8 November
Clear. High 57°, low 44°.
Pressure29.83 inHg
Wind10.6 mph W
Humidity49%
Visibility—
Dew point32°
Mon, 0953° / 46°0.4
53 °
West Acton, Monday, 9 November
Rain. High 53°, low 46°.
Pressure29.50 inHg
Wind9.9 mph E
Humidity99%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1051° / 37°0.15
51 °
West Acton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation38%
Record high72° (2020)
Record low22° (1992)
Wed, 1150° / 37°0.11
50 °
West Acton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2020)
Record low20° (2017)
Thu, 1249° / 36°0.13
49 °
West Acton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation37%
Record high72° (2022)
Record low23° (1976)
Fri, 1347° / 34°0.15
47 °
West Acton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (1964)
Record low16° (2019)
Sat, 1447° / 34°0.12
47 °
West Acton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (1973)
Record low9° (1986)
Sun, 1548° / 34°0.12
48 °
West Acton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.12 in
Chance of precipitation37%
Record high72° (1993)
Record low19° (1967)
Mon, 1648° / 34°0.15
48 °
West Acton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.15 in
Chance of precipitation25%
Record high66° (2005)
Record low13° (1967)
Tue, 1747° / 32°0.13
47 °
West 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 °
West 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 °
West 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 °
West 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 °
West 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 °
West 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 °
West 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)
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.