Monthly outlook for Old Harbor, MA: average high 54.8°, average low 48.6°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 4.4 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 20 October (60.6°), the coolest 20 October (41.1°).
54.8°/48.6°
Average high / low
−0.6°
Below normal
5 / 5
Wet days / normal
4.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
55.2°
56.8°
-0.8°
29 October – 7 November
54.2°
54.3°
-0.1°
8 November – 17 November
at normal
51.3°
—
October records over 66 years
73.6°1 October 2010All-time high
35.1°23 October 1969All-time low
Tue, 2061° / 41°0
61 °
Old Harbor, Tuesday, 20 October
Overcast. High 61°, low 41°.
Pressure30.21 inHg
Wind19.5 mph N
Humidity79%
Visibility5.1 mi
Dew point49°
Wed, 2154° / 44°0.03
54 °
Old Harbor, Wednesday, 21 October
Light rain. High 54°, low 44°.
Pressure30.18 inHg
Wind25.3 mph NE
Humidity71%
Visibility6.2 mi
Dew point44°
Thu, 2257° / 52°0.26
57 °
Old Harbor, Thursday, 22 October
Rain. High 57°, low 52°.
Pressure29.80 inHg
Wind20.7 mph N
Humidity74%
Visibility6.2 mi
Dew point46°
Fri, 2349° / 45°0.13
49 °
Old Harbor, Friday, 23 October
Light rain. High 49°, low 45°.
Pressure30.03 inHg
Wind22.3 mph N
Humidity73%
Visibility4.4 mi
Dew point39°
Sat, 2449° / 46°0
49 °
Old Harbor, Saturday, 24 October
Clear. High 49°, low 46°.
Pressure30.39 inHg
Wind16.8 mph N
Humidity58%
Visibility—
Dew point33°
Sun, 2556° / 46°0
56 °
Old Harbor, Sunday, 25 October
Clear. High 56°, low 46°.
Pressure30.50 inHg
Wind13.6 mph SW
Humidity63%
Visibility—
Dew point38°
Mon, 2658° / 54°0
58 °
Old Harbor, Monday, 26 October
Clear. High 58°, low 54°.
Pressure30.27 inHg
Wind22.4 mph SW
Humidity63%
Visibility—
Dew point45°
Tue, 2757° / 54°0
57 °
Old Harbor, Tuesday, 27 October
Clear. High 57°, low 54°.
Pressure30.15 inHg
Wind12 mph W
Humidity64%
Visibility—
Dew point45°
Wed, 2853° / 50°0.41
53 °
Old Harbor, Wednesday, 28 October
Rain. High 53°, low 50°.
Pressure30.12 inHg
Wind20.3 mph N
Humidity81%
Visibility—
Dew point45°
Thu, 2947° / 45°0.1
47 °
Old Harbor, Thursday, 29 October
Light rain. High 47°, low 45°.
Pressure30.00 inHg
Wind32.6 mph N
Humidity78%
Visibility—
Dew point40°
Fri, 3049° / 45°0
49 °
Old Harbor, Friday, 30 October
Clear. High 49°, low 45°.
Pressure30.18 inHg
Wind15.1 mph NW
Humidity52%
Visibility—
Dew point31°
Sat, 3155° / 48°0
55 °
Old Harbor, Saturday, 31 October
Mostly clear. High 55°, low 48°.
Pressure30.39 inHg
Wind13.6 mph SW
Humidity63%
Visibility—
Dew point41°
Sun, 0158° / 54°0
58 °
Old Harbor, Sunday, 1 November
Mostly clear. High 58°, low 54°.
Pressure30.33 inHg
Wind17.1 mph SW
Humidity74%
Visibility—
Dew point48°
Mon, 0258° / 55°0
58 °
Old Harbor, Monday, 2 November
Overcast. High 58°, low 55°.
Pressure30.24 inHg
Wind15.9 mph NE
Humidity81%
Visibility—
Dew point52°
Tue, 0358° / 54°3.47
58 °
Old Harbor, Tuesday, 3 November
Heavy rain. High 58°, low 54°.
Pressure29.80 inHg
Wind48.7 mph NE
Humidity94%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0454° / 48°0.05
54 °
Old Harbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low48°
Average precipitation0.05 in
Chance of precipitation18%
Record high63° (1975)
Record low33° (2002)
Thu, 0554° / 48°0.17
54 °
Old Harbor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low48°
Average precipitation0.17 in
Chance of precipitation37%
Record high63° (2022)
Record low35° (1965)
Fri, 0654° / 48°0.14
54 °
Old Harbor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low48°
Average precipitation0.14 in
Chance of precipitation42%
Record high64° (2022)
Record low37° (1987)
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)
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.