Monthly outlook for Groton Long Point, CT: average high 53°, average low 42.6°. That is 1.7° above the climate normal for November. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 24 November (60.6°), the coolest 14 November (33.3°).
53°/42.6°
Average high / low
+1.7°
Above normal
3 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
51.5°
50.7°
+0.5°
22 November – 1 December
55.4°
48.3°
+4°
2 December – 11 December
at normal
44.4°
—
November records over 66 years
74.3°1 November 2024All-time high
15.1°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Fishers Island (3 mi).
Fri, 1346° / 35°0.29
46 °
Groton Long Point, Friday, 13 November
Light rain. High 46°, low 35°.
Pressure29.53 inHg
Wind13.7 mph N
Humidity97%
Visibility2.9 mi
Dew point38°
Sat, 1445° / 33°0
45 °
Groton Long Point, Saturday, 14 November
Overcast. High 45°, low 33°.
Pressure29.71 inHg
Wind10.6 mph NW
Humidity57%
Visibility6.2 mi
Dew point27°
Sun, 1547° / 36°0
47 °
Groton Long Point, Sunday, 15 November
Partly cloudy. High 47°, low 36°.
Pressure30.03 inHg
Wind12 mph NW
Humidity55%
Visibility6.2 mi
Dew point29°
Mon, 1648° / 35°0
48 °
Groton Long Point, Monday, 16 November
Clear. High 48°, low 35°.
Pressure30.33 inHg
Wind7.7 mph NW
Humidity58%
Visibility6.2 mi
Dew point33°
Tue, 1753° / 33°0
53 °
Groton Long Point, Tuesday, 17 November
Clear. High 53°, low 33°.
Pressure30.42 inHg
Wind7.4 mph W
Humidity69%
Visibility—
Dew point35°
Wed, 1855° / 40°0
55 °
Groton Long Point, Wednesday, 18 November
Clear. High 55°, low 40°.
Pressure30.45 inHg
Wind11.7 mph W
Humidity61%
Visibility—
Dew point35°
Thu, 1953° / 45°0
53 °
Groton Long Point, Thursday, 19 November
Clear. High 53°, low 45°.
Pressure30.42 inHg
Wind9.7 mph W
Humidity57%
Visibility—
Dew point36°
Fri, 2057° / 50°0
57 °
Groton Long Point, Friday, 20 November
Overcast. High 57°, low 50°.
Pressure30.18 inHg
Wind13.5 mph W
Humidity61%
Visibility—
Dew point40°
Sat, 2156° / 43°0
56 °
Groton Long Point, Saturday, 21 November
Mostly clear. High 56°, low 43°.
Pressure30.18 inHg
Wind14.3 mph NW
Humidity67%
Visibility—
Dew point43°
Sun, 2255° / 39°0
55 °
Groton Long Point, Sunday, 22 November
Partly cloudy. High 55°, low 39°.
Pressure30.36 inHg
Wind13.3 mph S
Humidity60%
Visibility—
Dew point32°
Mon, 2359° / 55°0
59 °
Groton Long Point, Monday, 23 November
Overcast. High 59°, low 55°.
Pressure30.18 inHg
Wind11.7 mph S
Humidity88%
Visibility—
Dew point54°
Tue, 2461° / 57°0
61 °
Groton Long Point, Tuesday, 24 November
Overcast. High 61°, low 57°.
Pressure30.12 inHg
Wind9.1 mph E
Humidity88%
Visibility—
Dew point55°
Wed, 2559° / 56°0.25
59 °
Groton Long Point, Wednesday, 25 November
Rain. High 59°, low 56°.
Pressure29.97 inHg
Wind13.5 mph NW
Humidity99%
Visibility—
Dew point58°
Thu, 2649° / 41°0
49 °
Groton Long Point, Thursday, 26 November
Clear. High 49°, low 41°.
Pressure30.24 inHg
Wind18.7 mph NW
Humidity51%
Visibility—
Dew point29°
Fri, 2750° / 38°0
50 °
Groton Long Point, Friday, 27 November
Overcast. High 50°, low 38°.
Pressure30.59 inHg
Wind12 mph SE
Humidity58%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2850° / 38°0.2
50 °
Groton Long Point, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.2 in
Chance of precipitation37%
Record high63° (1990)
Record low17° (2002)
Sun, 2948° / 37°0.08
48 °
Groton Long Point, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (2011)
Record low25° (1996)
Mon, 3047° / 36°0.14
47 °
Groton Long Point, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.14 in
Chance of precipitation33%
Record high62° (2020)
Record low23° (2013)
Tue, 0147° / 36°0.13
47 °
Groton Long Point, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.13 in
Chance of precipitation42%
Record high65° (2001)
Record low20° (1989)
Wed, 0246° / 35°0.14
46 °
Groton Long Point, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.14 in
Chance of precipitation28%
Record high61° (2006)
Record low16° (1989)
Thu, 0346° / 34°0.17
46 °
Groton Long Point, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.17 in
Chance of precipitation28%
Record high62° (2009)
Record low14° (1976)
Fri, 0445° / 33°0.11
45 °
Groton Long Point, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation28%
Record high66° (1998)
Record low13° (1989)
Sat, 0544° / 33°0.18
44 °
Groton Long Point, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.18 in
Chance of precipitation28%
Record high65° (2001)
Record low15° (2025)
Sun, 0645° / 34°0.17
45 °
Groton Long Point, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.17 in
Chance of precipitation45%
Record high64° (2001)
Record low21° (2007)
Mon, 0744° / 33°0.14
44 °
Groton Long Point, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.14 in
Chance of precipitation30%
Record high69° (1998)
Record low13° (1964)
Tue, 0842° / 31°0.1
42 °
Groton Long Point, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.1 in
Chance of precipitation28%
Record high58° (2011)
Record low17° (1970)
Wed, 0944° / 31°0.2
44 °
Groton Long Point, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.2 in
Chance of precipitation35%
Record high60° (1991)
Record low12° (1968)
Thu, 1044° / 33°0.13
44 °
Groton Long Point, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.13 in
Chance of precipitation37%
Record high58° (2023)
Record low8° (1968)
Fri, 1144° / 32°0.26
44 °
Groton Long Point, Friday, 11 December
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.26 in
Chance of precipitation40%
Record high61° (1971)
Record low10° (1977)
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 Groton Long Point, CT 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 Groton Long Point, CT 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.