Monthly outlook for Old Harbor, MA: average high 56°, average low 48.4°. That is 0.8° above the climate normal for October. Precipitation is expected on 4 days (about 3.8 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 26 October (63.9°), the coolest 25 October (37.5°).
56°/48.4°
Average high / low
+0.8°
Above normal
4 / 5
Wet days / normal
3.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
57.6°
55.3°
+1.3°
4 November – 13 November
53.2°
52.7°
+0.3°
14 November – 23 November
at normal
49.3°
—
October records over 66 years
73.6°1 October 2010All-time high
35.1°23 October 1969All-time low
Mon, 2664° / 41°0
64 °
Old Harbor, Monday, 26 October
Clear. High 64°, low 41°.
Pressure30.18 inHg
Wind11.5 mph SW
Humidity70%
Visibility6.2 mi
Dew point48°
Tue, 2757° / 45°0
57 °
Old Harbor, Tuesday, 27 October
Partly cloudy. High 57°, low 45°.
Pressure30.33 inHg
Wind14.1 mph N
Humidity64%
Visibility6.2 mi
Dew point38°
Wed, 2851° / 43°0
51 °
Old Harbor, Wednesday, 28 October
Overcast. High 51°, low 43°.
Pressure30.53 inHg
Wind2.1 mph NE
Humidity54%
Visibility6.2 mi
Dew point35°
Thu, 2956° / 48°0
56 °
Old Harbor, Thursday, 29 October
Partly cloudy. High 56°, low 48°.
Pressure30.39 inHg
Wind15.8 mph SW
Humidity69%
Visibility—
Dew point44°
Fri, 3061° / 56°0
61 °
Old Harbor, Friday, 30 October
Clear. High 61°, low 56°.
Pressure30.06 inHg
Wind14.9 mph SW
Humidity82%
Visibility—
Dew point54°
Sat, 3157° / 51°0
57 °
Old Harbor, Saturday, 31 October
Clear. High 57°, low 51°.
Pressure30.36 inHg
Wind15.4 mph NW
Humidity74%
Visibility—
Dew point46°
Sun, 0154° / 51°0
54 °
Old Harbor, Sunday, 1 November
Overcast. High 54°, low 51°.
Pressure30.47 inHg
Wind10.8 mph S
Humidity69%
Visibility—
Dew point44°
Mon, 0258° / 54°0
58 °
Old Harbor, Monday, 2 November
Overcast. High 58°, low 54°.
Pressure30.39 inHg
Wind11.6 mph SW
Humidity80%
Visibility—
Dew point51°
Tue, 0359° / 55°0
59 °
Old Harbor, Tuesday, 3 November
Overcast. High 59°, low 55°.
Pressure30.18 inHg
Wind11.1 mph S
Humidity88%
Visibility—
Dew point54°
Wed, 0459° / 56°0.03
59 °
Old Harbor, Wednesday, 4 November
Light rain. High 59°, low 56°.
Pressure29.94 inHg
Wind14.2 mph NE
Humidity87%
Visibility—
Dew point55°
Thu, 0555° / 51°3.31
55 °
Old Harbor, Thursday, 5 November
Heavy rain. High 55°, low 51°.
Pressure29.62 inHg
Wind45.3 mph NW
Humidity95%
Visibility—
Dew point52°
Fri, 0647° / 44°0.05
47 °
Old Harbor, Friday, 6 November
Light rain. High 47°, low 44°.
Pressure29.65 inHg
Wind45.3 mph NW
Humidity84%
Visibility—
Dew point41°
Sat, 0754° / 48°0
54 °
Old Harbor, Saturday, 7 November
Overcast. High 54°, low 48°.
Pressure29.83 inHg
Wind13.2 mph W
Humidity72%
Visibility—
Dew point43°
Sun, 0856° / 48°0.35
56 °
Old Harbor, Sunday, 8 November
Rain. High 56°, low 48°.
Pressure29.59 inHg
Wind30.5 mph NW
Humidity97%
Visibility—
Dew point53°
Mon, 0948° / 47°0.07
48 °
Old Harbor, Monday, 9 November
Light rain. High 48°, low 47°.
Pressure29.97 inHg
Wind24.9 mph N
Humidity82%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1053° / 46°0.2
53 °
Old Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.2 in
Chance of precipitation40%
Record high61° (1985)
Record low33° (2017)
Wed, 1153° / 46°0.12
53 °
Old Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.12 in
Chance of precipitation37%
Record high62° (2022)
Record low32° (2017)
Thu, 1251° / 44°0.17
51 °
Old Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.17 in
Chance of precipitation37%
Record high64° (2022)
Record low32° (1976)
Fri, 1350° / 44°0.21
50 °
Old Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.21 in
Chance of precipitation45%
Record high60° (1975)
Record low26° (2019)
Sat, 1450° / 44°0.11
50 °
Old Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.11 in
Chance of precipitation28%
Record high60° (1975)
Record low27° (1986)
Sun, 1551° / 44°0.11
51 °
Old Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.11 in
Chance of precipitation35%
Record high62° (2008)
Record low31° (1967)
Mon, 1650° / 43°0.15
50 °
Old Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.15 in
Chance of precipitation38%
Record high62° (1989)
Record low32° (1967)
Tue, 1750° / 43°0.18
50 °
Old Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.18 in
Chance of precipitation28%
Record high62° (2006)
Record low31° (1967)
Wed, 1849° / 43°0.1
49 °
Old Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.1 in
Chance of precipitation28%
Record high60° (1978)
Record low33° (1965)
Thu, 1949° / 42°0.07
49 °
Old Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.07 in
Chance of precipitation18%
Record high60° (1994)
Record low30° (2014)
Fri, 2049° / 42°0.1
49 °
Old Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.1 in
Chance of precipitation32%
Record high59° (1985)
Record low28° (2008)
Sat, 2149° / 41°0.09
49 °
Old Harbor, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.09 in
Chance of precipitation35%
Record high59° (1988)
Record low24° (1987)
Sun, 2248° / 41°0.2
48 °
Old Harbor, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low41°
Average precipitation0.2 in
Chance of precipitation42%
Record high59° (1994)
Record low21° (2018)
Mon, 2347° / 40°0.15
47 °
Old Harbor, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low40°
Average precipitation0.15 in
Chance of precipitation25%
Record high58° (2020)
Record low25° (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 Old Harbor, 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 Old Harbor, 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.