Monthly outlook for Acton, ME: average high 56.8°, average low 39.1°. That is 0° below the climate normal for October. Precipitation is expected on 6 days (about 2.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 12 October (65.4°), the coolest 19 October (28.7°).
56.8°/39.1°
Average high / low
−0°
Below normal
6 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
57.7°
57.7°
-0°
19 October – 28 October
55.2°
54.4°
+0.4°
29 October – 7 November
at normal
50.8°
—
October records over 66 years
82.4°6 October 2025All-time high
24.6°24 October 1969All-time low
Sat, 1057° / 38°0
57 °
Acton, Saturday, 10 October
Clear. High 57°, low 38°.
Pressure30.45 inHg
Wind8.5 mph W
Humidity45%
Visibility6.2 mi
Dew point32°
Sun, 1160° / 39°0.12
60 °
Acton, Sunday, 11 October
Rain. High 60°, low 39°.
Pressure30.36 inHg
Wind6.1 mph S
Humidity52%
Visibility6.2 mi
Dew point41°
Mon, 1265° / 49°0.66
65 °
Acton, Monday, 12 October
Rain. High 65°, low 49°.
Pressure29.71 inHg
Wind5.4 mph N
Humidity89%
Visibility6.2 mi
Dew point52°
Tue, 1354° / 46°0.38
54 °
Acton, Tuesday, 13 October
Light rain. High 54°, low 46°.
Pressure29.80 inHg
Wind7.8 mph E
Humidity100%
Visibility2.3 mi
Dew point52°
Wed, 1457° / 42°0
57 °
Acton, Wednesday, 14 October
Overcast. High 57°, low 42°.
Pressure29.88 inHg
Wind8.4 mph N
Humidity69%
Visibility—
Dew point43°
Thu, 1556° / 36°0
56 °
Acton, Thursday, 15 October
Clear. High 56°, low 36°.
Pressure30.21 inHg
Wind9.6 mph NW
Humidity47%
Visibility—
Dew point28°
Fri, 1660° / 36°0.17
60 °
Acton, Friday, 16 October
Light rain. High 60°, low 36°.
Pressure30.09 inHg
Wind14.2 mph S
Humidity61%
Visibility—
Dew point37°
Sat, 1762° / 40°0.52
62 °
Acton, Saturday, 17 October
Rain. High 62°, low 40°.
Pressure29.71 inHg
Wind15.9 mph S
Humidity94%
Visibility—
Dew point46°
Sun, 1846° / 29°0
46 °
Acton, Sunday, 18 October
Mostly clear. High 46°, low 29°.
Pressure30.12 inHg
Wind9.6 mph W
Humidity49%
Visibility—
Dew point25°
Mon, 1949° / 29°0
49 °
Acton, Monday, 19 October
Clear. High 49°, low 29°.
Pressure30.50 inHg
Wind4 mph SW
Humidity37%
Visibility—
Dew point18°
Tue, 2053° / 32°0
53 °
Acton, Tuesday, 20 October
Overcast. High 53°, low 32°.
Pressure30.53 inHg
Wind6.1 mph SW
Humidity40%
Visibility—
Dew point23°
Wed, 2156° / 35°0
56 °
Acton, Wednesday, 21 October
Clear. High 56°, low 35°.
Pressure30.59 inHg
Wind6.6 mph S
Humidity49%
Visibility—
Dew point32°
Thu, 2256° / 38°0
56 °
Acton, Thursday, 22 October
Overcast. High 56°, low 38°.
Pressure30.42 inHg
Wind7.5 mph SW
Humidity68%
Visibility—
Dew point39°
Fri, 2357° / 40°0.03
57 °
Acton, Friday, 23 October
Light rain. High 57°, low 40°.
Pressure30.30 inHg
Wind8.5 mph S
Humidity74%
Visibility—
Dew point44°
Sat, 2459° / 53°0.81
59 °
Acton, Saturday, 24 October
Heavy rain. High 59°, low 53°.
Pressure30.06 inHg
Wind27.9 mph E
Humidity92%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 40°0.14
54 °
Acton, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.14 in
Chance of precipitation35%
Record high77° (1963)
Record low29° (2003)
Mon, 2653° / 40°0.15
53 °
Acton, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.15 in
Chance of precipitation30%
Record high77° (1963)
Record low28° (2018)
Tue, 2753° / 39°0.13
53 °
Acton, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high76° (1963)
Record low27° (1976)
Wed, 2853° / 38°0.17
53 °
Acton, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.17 in
Chance of precipitation35%
Record high75° (2023)
Record low26° (1976)
Thu, 2952° / 37°0.11
52 °
Acton, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high69° (2015)
Record low27° (1965)
Fri, 3050° / 37°0.17
50 °
Acton, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.17 in
Chance of precipitation23%
Record high68° (1989)
Record low26° (1962)
Sat, 3152° / 37°0.11
52 °
Acton, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.11 in
Chance of precipitation25%
Record high74° (2024)
Record low26° (1988)
Sun, 0152° / 38°0.11
52 °
Acton, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation27%
Record high71° (1974)
Record low28° (2023)
Mon, 0251° / 38°0.15
51 °
Acton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.15 in
Chance of precipitation33%
Record high67° (2001)
Record low24° (2002)
Tue, 0351° / 38°0.24
51 °
Acton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.24 in
Chance of precipitation37%
Record high67° (1990)
Record low22° (2002)
Wed, 0451° / 37°0.08
51 °
Acton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (1987)
Record low26° (2002)
Thu, 0550° / 37°0.19
50 °
Acton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.19 in
Chance of precipitation37%
Record high73° (2022)
Record low25° (1965)
Fri, 0649° / 38°0.13
49 °
Acton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation35%
Record high74° (2024)
Record low26° (2012)
Sat, 0749° / 36°0.06
49 °
Acton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (2020)
Record low22° (2002)
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 Acton, ME 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 Acton, ME 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.