Monthly outlook for Old Harbor, MA: average high 55.6°, average low 50°. That is 0.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 2 November (63.1°), the coolest 18 October (39.3°).
55.6°/50°
Average high / low
−0.3°
Below normal
2 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
54.5°
56.9°
-1.3°
28 October – 6 November
57.4°
54.6°
+1.5°
7 November – 16 November
at normal
51.7°
—
October records over 66 years
73.6°1 October 2010All-time high
35.1°23 October 1969All-time low
Mon, 1955° / 43°0
55 °
Old Harbor, Monday, 19 October
Overcast. High 55°, low 43°.
Pressure30.42 inHg
Wind14.1 mph NE
Humidity71%
Visibility6.2 mi
Dew point45°
Tue, 2056° / 53°0
56 °
Old Harbor, Tuesday, 20 October
Overcast. High 56°, low 53°.
Pressure30.18 inHg
Wind20.4 mph N
Humidity77%
Visibility6.2 mi
Dew point49°
Wed, 2154° / 52°0
54 °
Old Harbor, Wednesday, 21 October
Overcast. High 54°, low 52°.
Pressure30.21 inHg
Wind24.3 mph NE
Humidity70%
Visibility6.2 mi
Dew point44°
Thu, 2256° / 51°0
56 °
Old Harbor, Thursday, 22 October
Overcast. High 56°, low 51°.
Pressure29.91 inHg
Wind19.7 mph N
Humidity67%
Visibility6.2 mi
Dew point43°
Fri, 2349° / 47°0
49 °
Old Harbor, Friday, 23 October
Overcast. High 49°, low 47°.
Pressure30.27 inHg
Wind20 mph N
Humidity61%
Visibility—
Dew point35°
Sat, 2451° / 47°0
51 °
Old Harbor, Saturday, 24 October
Clear. High 51°, low 47°.
Pressure30.59 inHg
Wind9 mph N
Humidity60%
Visibility—
Dew point36°
Sun, 2554° / 47°0
54 °
Old Harbor, Sunday, 25 October
Clear. High 54°, low 47°.
Pressure30.45 inHg
Wind16 mph SW
Humidity55%
Visibility—
Dew point35°
Mon, 2659° / 55°0
59 °
Old Harbor, Monday, 26 October
Clear. High 59°, low 55°.
Pressure30.21 inHg
Wind18.8 mph SW
Humidity72%
Visibility—
Dew point49°
Tue, 2758° / 53°0
58 °
Old Harbor, Tuesday, 27 October
Overcast. High 58°, low 53°.
Pressure30.27 inHg
Wind16.3 mph SW
Humidity69%
Visibility—
Dew point45°
Wed, 2858° / 50°0
58 °
Old Harbor, Wednesday, 28 October
Overcast. High 58°, low 50°.
Pressure30.24 inHg
Wind18.8 mph NE
Humidity85%
Visibility—
Dew point50°
Thu, 2951° / 49°0
51 °
Old Harbor, Thursday, 29 October
Clear. High 51°, low 49°.
Pressure30.39 inHg
Wind13.2 mph E
Humidity53%
Visibility—
Dew point34°
Fri, 3052° / 49°0
52 °
Old Harbor, Friday, 30 October
Clear. High 52°, low 49°.
Pressure30.47 inHg
Wind12.1 mph SE
Humidity56%
Visibility—
Dew point36°
Sat, 3159° / 55°0
59 °
Old Harbor, Saturday, 31 October
Overcast. High 59°, low 55°.
Pressure30.30 inHg
Wind16.4 mph SW
Humidity80%
Visibility—
Dew point51°
Sun, 0162° / 59°0.32
62 °
Old Harbor, Sunday, 1 November
Rain. High 62°, low 59°.
Pressure29.94 inHg
Wind26.6 mph SW
Humidity99%
Visibility—
Dew point59°
Mon, 0263° / 52°0.04
63 °
Old Harbor, Monday, 2 November
Light rain. High 63°, low 52°.
Pressure29.77 inHg
Wind30.4 mph SW
Humidity69%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0355° / 48°0.24
55 °
Old Harbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low48°
Average precipitation0.24 in
Chance of precipitation33%
Record high64° (1971)
Record low37° (2002)
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)
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.