Monthly outlook for Old Harbor, MA: average high 54.3°, average low 48.4°. That is 0.6° below the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 30 October (58.6°), the coolest 28 October (43.5°).
54.3°/48.4°
Average high / low
−0.6°
Below normal
4 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
55.2°
55.8°
-0.3°
1 November – 10 November
52.9°
53.8°
-0.5°
11 November – 20 November
at normal
50.3°
—
October records over 66 years
73.6°1 October 2010All-time high
35.1°23 October 1969All-time low
Fri, 2354° / 46°0
54 °
Old Harbor, Friday, 23 October
Partly cloudy. High 54°, low 46°.
Pressure30.27 inHg
Wind20.8 mph N
Humidity62%
Visibility6.2 mi
Dew point36°
Sat, 2451° / 46°0
51 °
Old Harbor, Saturday, 24 October
Clear. High 51°, low 46°.
Pressure30.47 inHg
Wind9.2 mph N
Humidity59%
Visibility6.2 mi
Dew point37°
Sun, 2554° / 46°0
54 °
Old Harbor, Sunday, 25 October
Mostly clear. High 54°, low 46°.
Pressure30.53 inHg
Wind3.4 mph S
Humidity67%
Visibility0.4 mi
Dew point43°
Mon, 2658° / 48°0
58 °
Old Harbor, Monday, 26 October
Mostly clear. High 58°, low 48°.
Pressure30.21 inHg
Wind11 mph SW
Humidity80%
Visibility1.5 mi
Dew point49°
Tue, 2755° / 45°0
55 °
Old Harbor, Tuesday, 27 October
Overcast. High 55°, low 45°.
Pressure30.33 inHg
Wind17.9 mph N
Humidity63%
Visibility—
Dew point38°
Wed, 2850° / 43°0
50 °
Old Harbor, Wednesday, 28 October
Partly cloudy. High 50°, low 43°.
Pressure30.45 inHg
Wind7.3 mph SE
Humidity69%
Visibility—
Dew point37°
Thu, 2955° / 49°0
55 °
Old Harbor, Thursday, 29 October
Clear. High 55°, low 49°.
Pressure30.30 inHg
Wind13.4 mph S
Humidity72%
Visibility—
Dew point44°
Fri, 3059° / 55°0
59 °
Old Harbor, Friday, 30 October
Overcast. High 59°, low 55°.
Pressure30.18 inHg
Wind13.9 mph SW
Humidity83%
Visibility—
Dew point52°
Sat, 3158° / 52°0
58 °
Old Harbor, Saturday, 31 October
Overcast. High 58°, low 52°.
Pressure30.00 inHg
Wind19.6 mph NE
Humidity85%
Visibility—
Dew point54°
Sun, 0156° / 50°0.07
56 °
Old Harbor, Sunday, 1 November
Light rain. High 56°, low 50°.
Pressure30.21 inHg
Wind14.1 mph NE
Humidity80%
Visibility—
Dew point46°
Mon, 0255° / 52°0.87
55 °
Old Harbor, Monday, 2 November
Rain. High 55°, low 52°.
Pressure29.94 inHg
Wind26 mph NE
Humidity98%
Visibility—
Dew point53°
Tue, 0351° / 49°0.62
51 °
Old Harbor, Tuesday, 3 November
Rain. High 51°, low 49°.
Pressure30.03 inHg
Wind28.8 mph NE
Humidity91%
Visibility—
Dew point48°
Wed, 0449° / 47°0
49 °
Old Harbor, Wednesday, 4 November
Mostly clear. High 49°, low 47°.
Pressure30.42 inHg
Wind22.5 mph NE
Humidity58%
Visibility—
Dew point35°
Thu, 0552° / 45°0
52 °
Old Harbor, Thursday, 5 November
Clear. High 52°, low 45°.
Pressure30.36 inHg
Wind21.5 mph W
Humidity58%
Visibility—
Dew point35°
Fri, 0653° / 50°0
53 °
Old Harbor, Friday, 6 November
Overcast. High 53°, low 50°.
Pressure30.12 inHg
Wind19.3 mph W
Humidity70%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0753° / 47°0.09
53 °
Old Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low47°
Average precipitation0.09 in
Chance of precipitation32%
Record high65° (2022)
Record low35° (2002)
Sun, 0853° / 46°0.17
53 °
Old Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.17 in
Chance of precipitation30%
Record high61° (2022)
Record low34° (1971)
Mon, 0952° / 46°0.11
52 °
Old Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.11 in
Chance of precipitation33%
Record high61° (1989)
Record low31° (1976)
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)
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.