As of 16:05 EST

Weather in Cos Cob, CT

56°Current weather

Cos Cob, Monday, 9 November, 16:05

Partly cloudy. Feels like 54°. High 56°, low 46°.

Pressure29.83 inHg
Wind21.9 mph NW
Humidity58%
Visibility6.2 mi
Dew point42°

Monthly outlook for Cos Cob, CT: average high 52.1°, average low 41°. That is 0.8° above the climate normal for November. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 10 November (59.4°), the coolest 15 November (33.3°).

52.1°/41°
Average high / low
+0.8°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 November – 18 November51.3°51.7°-0.2°
19 November – 28 November53.5°49°+2.5°
29 November – 8 Decemberat normal44.9°—

November records over 66 years

78.4°6 November 2024All-time high
15.1°23 November 2018All-time low

Climate normals and records are computed from the nearest reference point — Pemberwick (4 mi).

Tue, 1059° / 45°0Mostly clear
59 °Mostly clear

Cos Cob, Tuesday, 10 November

Mostly clear. High 59°, low 45°.

Pressure29.88 inHg
Wind8.2 mph SW
Humidity60%
Visibility6.2 mi
Dew point41°
Wed, 1156° / 45°0Mostly clear
56 °Mostly clear

Cos Cob, Wednesday, 11 November

Mostly clear. High 56°, low 45°.

Pressure29.91 inHg
Wind6.4 mph W
Humidity53%
Visibility6.2 mi
Dew point38°
Thu, 1254° / 43°0.08Light rain
54 °Light rain

Cos Cob, Thursday, 12 November

Light rain. High 54°, low 43°.

Pressure29.62 inHg
Wind8.7 mph E
Humidity71%
Visibility6.2 mi
Dew point43°
Fri, 1346° / 39°0.22Rain
46 °Rain

Cos Cob, Friday, 13 November

Rain. High 46°, low 39°.

Pressure29.62 inHg
Wind11.2 mph N
Humidity60%
Visibility6.2 mi
Dew point30°
Sat, 1445° / 35°0Clear
45 °Clear

Cos Cob, Saturday, 14 November

Clear. High 45°, low 35°.

Pressure29.80 inHg
Wind11.8 mph NW
Humidity68%
Visibility—
Dew point30°
Sun, 1547° / 33°0Mostly clear
47 °Mostly clear

Cos Cob, Sunday, 15 November

Mostly clear. High 47°, low 33°.

Pressure29.97 inHg
Wind12.5 mph NW
Humidity68%
Visibility—
Dew point30°
Mon, 1651° / 41°0Clear
51 °Clear

Cos Cob, Monday, 16 November

Clear. High 51°, low 41°.

Pressure30.12 inHg
Wind10.7 mph NW
Humidity59%
Visibility—
Dew point33°
Tue, 1748° / 36°0Clear
48 °Clear

Cos Cob, Tuesday, 17 November

Clear. High 48°, low 36°.

Pressure30.42 inHg
Wind10.3 mph N
Humidity54%
Visibility—
Dew point26°
Wed, 1851° / 37°0Clear
51 °Clear

Cos Cob, Wednesday, 18 November

Clear. High 51°, low 37°.

Pressure30.50 inHg
Wind7.3 mph NW
Humidity52%
Visibility—
Dew point27°
Thu, 1956° / 40°0Clear
56 °Clear

Cos Cob, Thursday, 19 November

Clear. High 56°, low 40°.

Pressure30.47 inHg
Wind6.8 mph NW
Humidity58%
Visibility—
Dew point33°
Fri, 2057° / 46°0Mostly clear
57 °Mostly clear

Cos Cob, Friday, 20 November

Mostly clear. High 57°, low 46°.

Pressure30.45 inHg
Wind6.4 mph SW
Humidity46%
Visibility—
Dew point31°
Sat, 2156° / 45°0Overcast
56 °Overcast

Cos Cob, Saturday, 21 November

Overcast. High 56°, low 45°.

Pressure30.39 inHg
Wind9.8 mph SW
Humidity45%
Visibility—
Dew point30°
Sun, 2257° / 48°0.02Light rain
57 °Light rain

Cos Cob, Sunday, 22 November

Light rain. High 57°, low 48°.

Pressure30.06 inHg
Wind11.9 mph SW
Humidity81%
Visibility—
Dew point51°
Mon, 2349° / 41°0Clear
49 °Clear

Cos Cob, Monday, 23 November

Clear. High 49°, low 41°.

Pressure30.18 inHg
Wind14 mph N
Humidity52%
Visibility—
Dew point29°
Tue, 2446° / 36°0Partly cloudy
46 °Partly cloudy

Cos Cob, Tuesday, 24 November

Partly cloudy. High 46°, low 36°.

Pressure30.39 inHg
Wind13.8 mph NE
Humidity60%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2549° / 37°0.13Climate normal
49 °Climate normal

Cos Cob, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation32%
Record high67° (1979)
Record low23° (2005)
Thu, 2650° / 37°0.21Climate normal
50 °Climate normal

Cos Cob, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.21 in
Chance of precipitation47%
Record high63° (1979)
Record low28° (2005)
Fri, 2749° / 37°0.13Climate normal
49 °Climate normal

Cos Cob, Friday, 27 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation32%
Record high61° (1988)
Record low26° (1974)
Sat, 2849° / 38°0.15Climate normal
49 °Climate normal

Cos Cob, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high49°
Average low38°
Average precipitation0.15 in
Chance of precipitation38%
Record high65° (1973)
Record low24° (1996)
Sun, 2947° / 37°0.09Climate normal
47 °Climate normal

Cos Cob, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high47°
Average low37°
Average precipitation0.09 in
Chance of precipitation32%
Record high64° (1990)
Record low24° (2023)
Mon, 3046° / 35°0.13Climate normal
46 °Climate normal

Cos Cob, Monday, 30 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.13 in
Chance of precipitation35%
Record high63° (2001)
Record low23° (1976)
Tue, 0146° / 35°0.14Climate normal
46 °Climate normal

Cos Cob, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.14 in
Chance of precipitation37%
Record high66° (2001)
Record low21° (1967)
Wed, 0246° / 35°0.12Climate normal
46 °Climate normal

Cos Cob, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.12 in
Chance of precipitation32%
Record high61° (2023)
Record low20° (1971)
Thu, 0346° / 34°0.14Climate normal
46 °Climate normal

Cos Cob, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.14 in
Chance of precipitation32%
Record high62° (1998)
Record low14° (1976)
Fri, 0445° / 33°0.11Climate normal
45 °Climate normal

Cos Cob, Friday, 4 December

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (1998)
Record low16° (1989)
Sat, 0543° / 33°0.15Climate normal
43 °Climate normal

Cos Cob, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high43°
Average low33°
Average precipitation0.15 in
Chance of precipitation30%
Record high66° (2001)
Record low15° (2025)
Sun, 0645° / 34°0.15Climate normal
45 °Climate normal

Cos Cob, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.15 in
Chance of precipitation43%
Record high68° (2001)
Record low22° (2007)
Mon, 0744° / 33°0.12Climate normal
44 °Climate normal

Cos Cob, Monday, 7 December

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.12 in
Chance of precipitation32%
Record high70° (1998)
Record low13° (2002)
Tue, 0842° / 32°0.1Climate normal
42 °Climate normal

Cos Cob, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high42°
Average low32°
Average precipitation0.1 in
Chance of precipitation28%
Record high58° (1966)
Record low19° (1976)

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 Cos Cob, 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 Cos Cob, 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.