Monthly outlook for Chappaquiddick, MA: average high 55.9°, average low 48.9°. That is 0° above the climate normal for October. Precipitation is expected on 5 days (about 3.3 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 29 October (60.3°), the coolest 25 October (38.3°).
55.9°/48.9°
Average high / low
+0°
Above normal
5 / 5
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
56.9°
56.5°
+0.2°
3 November – 12 November
54.2°
54.2°
+0°
13 November – 22 November
at normal
50.4°
—
October records over 66 years
76.3°5 October 2025All-time high
34.5°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Edgartown (2 mi).
Sun, 2560° / 38°0
60 °
Chappaquiddick, Sunday, 25 October
Mostly clear. High 60°, low 38°.
Pressure30.56 inHg
Wind0.7 mph W
Humidity72%
Visibility3.5 mi
Dew point44°
Mon, 2659° / 45°0
59 °
Chappaquiddick, Monday, 26 October
Clear. High 59°, low 45°.
Pressure30.18 inHg
Wind12.5 mph W
Humidity70%
Visibility6.2 mi
Dew point48°
Tue, 2756° / 44°0
56 °
Chappaquiddick, Tuesday, 27 October
Partly cloudy. High 56°, low 44°.
Pressure30.33 inHg
Wind11.9 mph N
Humidity61%
Visibility6.2 mi
Dew point38°
Wed, 2852° / 41°0
52 °
Chappaquiddick, Wednesday, 28 October
Clear. High 52°, low 41°.
Pressure30.50 inHg
Wind1.9 mph E
Humidity59%
Visibility6.2 mi
Dew point37°
Thu, 2960° / 46°0
60 °
Chappaquiddick, Thursday, 29 October
Clear. High 60°, low 46°.
Pressure30.30 inHg
Wind17.2 mph SW
Humidity68%
Visibility—
Dew point47°
Fri, 3059° / 55°0
59 °
Chappaquiddick, Friday, 30 October
Mostly clear. High 59°, low 55°.
Pressure30.15 inHg
Wind15.2 mph W
Humidity87%
Visibility—
Dew point52°
Sat, 3156° / 52°0
56 °
Chappaquiddick, Saturday, 31 October
Clear. High 56°, low 52°.
Pressure30.39 inHg
Wind15.1 mph E
Humidity82%
Visibility—
Dew point49°
Sun, 0156° / 53°0
56 °
Chappaquiddick, Sunday, 1 November
Mostly clear. High 56°, low 53°.
Pressure30.39 inHg
Wind13.4 mph E
Humidity88%
Visibility—
Dew point49°
Mon, 0258° / 55°0.78
58 °
Chappaquiddick, Monday, 2 November
Rain. High 58°, low 55°.
Pressure29.97 inHg
Wind24.2 mph E
Humidity99%
Visibility—
Dew point56°
Tue, 0358° / 56°0.38
58 °
Chappaquiddick, Tuesday, 3 November
Rain. High 58°, low 56°.
Pressure29.56 inHg
Wind21.7 mph E
Humidity99%
Visibility—
Dew point57°
Wed, 0457° / 55°0.04
57 °
Chappaquiddick, Wednesday, 4 November
Light rain. High 57°, low 55°.
Pressure29.80 inHg
Wind15.3 mph SE
Humidity86%
Visibility—
Dew point51°
Thu, 0556° / 53°0.02
56 °
Chappaquiddick, Thursday, 5 November
Light rain. High 56°, low 53°.
Pressure29.83 inHg
Wind19.4 mph W
Humidity83%
Visibility—
Dew point49°
Fri, 0652° / 48°0.01
52 °
Chappaquiddick, Friday, 6 November
Light rain. High 52°, low 48°.
Pressure30.06 inHg
Wind19.7 mph NE
Humidity79%
Visibility—
Dew point44°
Sat, 0751° / 48°0.07
51 °
Chappaquiddick, Saturday, 7 November
Light rain. High 51°, low 48°.
Pressure30.36 inHg
Wind20.7 mph E
Humidity74%
Visibility—
Dew point41°
Sun, 0851° / 50°1.96
51 °
Chappaquiddick, Sunday, 8 November
Heavy rain. High 51°, low 50°.
Pressure30.03 inHg
Wind35.5 mph N
Humidity94%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0953° / 46°0.11
53 °
Chappaquiddick, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high65° (2020)
Record low30° (2019)
Tue, 1054° / 46°0.21
54 °
Chappaquiddick, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low46°
Average precipitation0.21 in
Chance of precipitation43%
Record high64° (2020)
Record low29° (2017)
Wed, 1153° / 46°0.13
53 °
Chappaquiddick, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.13 in
Chance of precipitation40%
Record high68° (2022)
Record low27° (2017)
Thu, 1252° / 44°0.18
52 °
Chappaquiddick, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.18 in
Chance of precipitation35%
Record high69° (2022)
Record low30° (2017)
Fri, 1351° / 43°0.23
51 °
Chappaquiddick, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.23 in
Chance of precipitation45%
Record high62° (1975)
Record low23° (2019)
Sat, 1451° / 44°0.12
51 °
Chappaquiddick, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.12 in
Chance of precipitation25%
Record high60° (2009)
Record low25° (2019)
Sun, 1552° / 44°0.11
52 °
Chappaquiddick, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.11 in
Chance of precipitation32%
Record high63° (2008)
Record low27° (1967)
Mon, 1651° / 43°0.15
51 °
Chappaquiddick, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.15 in
Chance of precipitation35%
Record high64° (1989)
Record low28° (1967)
Tue, 1750° / 42°0.18
50 °
Chappaquiddick, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.18 in
Chance of precipitation30%
Record high64° (2006)
Record low32° (1980)
Wed, 1851° / 43°0.09
51 °
Chappaquiddick, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.09 in
Chance of precipitation23%
Record high63° (2021)
Record low30° (2020)
Thu, 1950° / 42°0.07
50 °
Chappaquiddick, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.07 in
Chance of precipitation23%
Record high62° (2017)
Record low28° (2020)
Fri, 2050° / 42°0.1
50 °
Chappaquiddick, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.1 in
Chance of precipitation28%
Record high60° (1985)
Record low28° (2008)
Sat, 2149° / 41°0.09
49 °
Chappaquiddick, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.09 in
Chance of precipitation33%
Record high60° (1988)
Record low23° (1987)
Sun, 2249° / 41°0.2
49 °
Chappaquiddick, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.2 in
Chance of precipitation40%
Record high60° (1994)
Record low16° (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 Chappaquiddick, 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 Chappaquiddick, 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.