Monthly outlook for Old Harbor, MA: average high 58.1°, average low 51.4°. That is 0.7° above 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 16 October (72.8°), the coolest 18 October (46.5°).
58.1°/51.4°
Average high / low
+0.7°
Above normal
2 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
58.6°
57.7°
+0.5°
25 October – 3 November
57.4°
55.3°
+1.2°
4 November – 13 November
at normal
52.7°
—
October records over 66 years
73.6°1 October 2010All-time high
35.1°23 October 1969All-time low
Fri, 1673° / 53°0.3
73 °
Old Harbor, Friday, 16 October
Rain. High 73°, low 53°.
Pressure29.85 inHg
Wind20.9 mph S
Humidity89%
Visibility1.8 mi
Dew point58°
Sat, 1764° / 48°0.09
64 °
Old Harbor, Saturday, 17 October
Light rain. High 64°, low 48°.
Pressure30.03 inHg
Wind17.9 mph NW
Humidity64%
Visibility6.2 mi
Dew point39°
Sun, 1850° / 47°0
50 °
Old Harbor, Sunday, 18 October
Clear. High 50°, low 47°.
Pressure30.56 inHg
Wind10.3 mph N
Humidity50%
Visibility6.2 mi
Dew point31°
Mon, 1955° / 50°0
55 °
Old Harbor, Monday, 19 October
Overcast. High 55°, low 50°.
Pressure30.53 inHg
Wind12.1 mph E
Humidity69%
Visibility6.2 mi
Dew point45°
Tue, 2058° / 55°0.01
58 °
Old Harbor, Tuesday, 20 October
Light rain. High 58°, low 55°.
Pressure30.21 inHg
Wind18.5 mph NE
Humidity86%
Visibility—
Dew point53°
Wed, 2156° / 52°0
56 °
Old Harbor, Wednesday, 21 October
Overcast. High 56°, low 52°.
Pressure30.27 inHg
Wind26.1 mph NE
Humidity76%
Visibility—
Dew point47°
Thu, 2254° / 50°0
54 °
Old Harbor, Thursday, 22 October
Overcast. High 54°, low 50°.
Pressure30.45 inHg
Wind19.8 mph NE
Humidity66%
Visibility—
Dew point41°
Fri, 2360° / 50°0
60 °
Old Harbor, Friday, 23 October
Clear. High 60°, low 50°.
Pressure30.24 inHg
Wind17.3 mph N
Humidity67%
Visibility—
Dew point46°
Sat, 2455° / 49°0
55 °
Old Harbor, Saturday, 24 October
Clear. High 55°, low 49°.
Pressure30.36 inHg
Wind21.9 mph N
Humidity66%
Visibility—
Dew point40°
Sun, 2551° / 49°0.01
51 °
Old Harbor, Sunday, 25 October
Light rain. High 51°, low 49°.
Pressure30.45 inHg
Wind21.4 mph NE
Humidity71%
Visibility—
Dew point41°
Mon, 2658° / 48°0
58 °
Old Harbor, Monday, 26 October
Clear. High 58°, low 48°.
Pressure30.33 inHg
Wind18 mph NE
Humidity61%
Visibility—
Dew point39°
Tue, 2754° / 51°0
54 °
Old Harbor, Tuesday, 27 October
Light rain. High 54°, low 51°.
Pressure30.42 inHg
Wind13.8 mph NE
Humidity73%
Visibility—
Dew point45°
Wed, 2858° / 51°0
58 °
Old Harbor, Wednesday, 28 October
Overcast. High 58°, low 51°.
Pressure30.45 inHg
Wind14.8 mph SW
Humidity67%
Visibility—
Dew point45°
Thu, 2961° / 57°0
61 °
Old Harbor, Thursday, 29 October
Overcast. High 61°, low 57°.
Pressure30.27 inHg
Wind18 mph SW
Humidity81%
Visibility—
Dew point54°
Fri, 3062° / 59°0
62 °
Old Harbor, Friday, 30 October
Partly cloudy. High 62°, low 59°.
Pressure30.15 inHg
Wind20.2 mph SW
Humidity79%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3154° / 49°0.09
54 °
Old Harbor, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low49°
Average precipitation0.09 in
Chance of precipitation20%
Record high64° (2019)
Record low38° (1988)
Sun, 0155° / 49°0.12
55 °
Old Harbor, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low49°
Average precipitation0.12 in
Chance of precipitation32%
Record high65° (2019)
Record low39° (1976)
Mon, 0255° / 49°0.14
55 °
Old Harbor, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low49°
Average precipitation0.14 in
Chance of precipitation30%
Record high64° (1971)
Record low34° (1965)
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)
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.