Monthly outlook for Townsend Harbor, MA: average high 56.6°, average low 38.6°. That is 0.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (68.3°), the coolest 24 October (29.6°).
56.6°/38.6°
Average high / low
+0.6°
Above normal
3 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
59.2°
56.2°
+1.7°
1 November – 10 November
52.4°
53.2°
-0.5°
11 November – 20 November
at normal
47.4°
—
October records over 66 years
85.8°5 October 2007All-time high
23.4°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Groton (6 mi).
Fri, 2355° / 33°0
55 °
Townsend Harbor, Friday, 23 October
Clear. High 55°, low 33°.
Pressure30.36 inHg
Wind7 mph N
Humidity48%
Visibility6.2 mi
Dew point26°
Sat, 2462° / 30°0
62 °
Townsend Harbor, Saturday, 24 October
Clear. High 62°, low 30°.
Pressure30.47 inHg
Wind3.7 mph NW
Humidity37%
Visibility6.2 mi
Dew point24°
Sun, 2565° / 37°0
65 °
Townsend Harbor, Sunday, 25 October
Clear. High 65°, low 37°.
Pressure30.50 inHg
Wind1.5 mph SW
Humidity32%
Visibility6.2 mi
Dew point29°
Mon, 2668° / 45°0
68 °
Townsend Harbor, Monday, 26 October
Clear. High 68°, low 45°.
Pressure30.21 inHg
Wind6.2 mph W
Humidity31%
Visibility6.2 mi
Dew point32°
Tue, 2753° / 36°0
53 °
Townsend Harbor, Tuesday, 27 October
Clear. High 53°, low 36°.
Pressure30.39 inHg
Wind9.3 mph NW
Humidity53%
Visibility—
Dew point31°
Wed, 2851° / 32°0
51 °
Townsend Harbor, Wednesday, 28 October
Overcast. High 51°, low 32°.
Pressure30.47 inHg
Wind4.8 mph NW
Humidity40%
Visibility—
Dew point21°
Thu, 2962° / 43°0
62 °
Townsend Harbor, Thursday, 29 October
Overcast. High 62°, low 43°.
Pressure30.24 inHg
Wind12 mph SW
Humidity62%
Visibility—
Dew point42°
Fri, 3055° / 39°0
55 °
Townsend Harbor, Friday, 30 October
Light rain. High 55°, low 39°.
Pressure30.09 inHg
Wind12.9 mph SW
Humidity43%
Visibility—
Dew point29°
Sat, 3156° / 37°0
56 °
Townsend Harbor, Saturday, 31 October
Clear. High 56°, low 37°.
Pressure30.45 inHg
Wind5 mph W
Humidity43%
Visibility—
Dew point27°
Sun, 0160° / 42°0.01
60 °
Townsend Harbor, Sunday, 1 November
Light rain. High 60°, low 42°.
Pressure30.47 inHg
Wind9.9 mph S
Humidity67%
Visibility—
Dew point40°
Mon, 0265° / 55°0.16
65 °
Townsend Harbor, Monday, 2 November
Light rain. High 65°, low 55°.
Pressure29.97 inHg
Wind9.8 mph SW
Humidity85%
Visibility—
Dew point57°
Tue, 0358° / 42°0
58 °
Townsend Harbor, Tuesday, 3 November
Clear. High 58°, low 42°.
Pressure30.03 inHg
Wind11.1 mph NW
Humidity43%
Visibility—
Dew point31°
Wed, 0447° / 41°0.24
47 °
Townsend Harbor, Wednesday, 4 November
Light rain. High 47°, low 41°.
Pressure29.65 inHg
Wind11.1 mph NW
Humidity91%
Visibility—
Dew point43°
Thu, 0539° / 34°0.71
39 °
Townsend Harbor, Thursday, 5 November
Snow. High 39°, low 34°.
Pressure29.59 inHg
Wind14.2 mph N
Humidity96%
Visibility—
Dew point36°
Fri, 0645° / 32°0
45 °
Townsend Harbor, Friday, 6 November
Overcast. High 45°, low 32°.
Pressure30.09 inHg
Wind10.4 mph NW
Humidity56%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0752° / 38°0.05
52 °
Townsend Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high73° (2020)
Record low26° (1962)
Sun, 0851° / 37°0.09
51 °
Townsend Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2020)
Record low25° (1960)
Mon, 0951° / 37°0.1
51 °
Townsend Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high72° (2020)
Record low23° (1971)
Tue, 1051° / 37°0.15
51 °
Townsend Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation38%
Record high72° (2020)
Record low22° (1992)
Wed, 1150° / 37°0.11
50 °
Townsend Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2020)
Record low20° (2017)
Thu, 1249° / 36°0.13
49 °
Townsend Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation37%
Record high72° (2022)
Record low23° (1976)
Fri, 1347° / 34°0.15
47 °
Townsend Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (1964)
Record low16° (2019)
Sat, 1447° / 34°0.12
47 °
Townsend Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (1973)
Record low9° (1986)
Sun, 1548° / 34°0.12
48 °
Townsend Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.12 in
Chance of precipitation37%
Record high72° (1993)
Record low19° (1967)
Mon, 1648° / 34°0.15
48 °
Townsend Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.15 in
Chance of precipitation25%
Record high66° (2005)
Record low13° (1967)
Tue, 1747° / 32°0.13
47 °
Townsend Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation30%
Record high64° (2006)
Record low11° (1972)
Wed, 1847° / 33°0.07
47 °
Townsend Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (1963)
Record low23° (2020)
Thu, 1946° / 32°0.06
46 °
Townsend Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation18%
Record high64° (1991)
Record low13° (1986)
Fri, 2046° / 32°0.12
46 °
Townsend Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation33%
Record high68° (1991)
Record low7° (1986)
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 Townsend 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 Townsend 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.