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Cos Cob CT Weather - Mostly Cloudy - 79°F
Mostly Cloudy
79°F
Updated 3:03 pm
Feels Like 86°F
Humidity 64%
Wind S 12 mph
Barometer  30.1 in
Dew Point 66°F
Cos Cob CT Weather - Mostly Cloudy - 26°C
Mostly Cloudy
26°C
Updated 3:03 pm
Feels Like 30°C
Humidity 64%
Wind S 19 km/h
Barometer  101.9 kPa
Dew Point 19°C
Cos Cob, CT Weather and Current Conditionscos cob ct weather forecast

Cos Cob, CT Weather Forecast

Cos Cob Connecticut WeatherCos Cob, Connecticut Weather Weather Forecast
14 day API forecast for Cos Cob, Connecticut. Note. The 7-day weather forecast for Cos Cob, CT is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Cos Cob, CT Weather Forecast Dated: 303 PM Wed Sep 09 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Wednesday, September 9, 2026

Mid-Morning
Cos Cob Weather - 2026-09-09 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Cos Cob Weather - 2026-09-09 - Afternoon - Overcast
82°F 28°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-09 - Evening - Overcast
78°F 26°C
Overcast
Warm and summery around 82°F 28°C (feels like 85°F 30°C), overcast throughout the day, with lower humidity and barometric pressure falling. Winds picking up from SSW at 6 mph 10 km/h to SSW at 19 mph 30 km/h. Gusts up to 29 mph 46 km/h.

Thursday, September 10, 2026

Mid-Morning
Cos Cob Weather - 2026-09-10 - Morning - Cloudy
74°F 24°C
Cloudy
Mid-Afternoon
Cos Cob Weather - 2026-09-10 - Afternoon - Cloudy
83°F 29°C
Cloudy
Early-Evening
Cos Cob Weather - 2026-09-10 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Quite warm reaching 83°F 29°C, feeling like 86°F 30°C during peak afternoon, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the WSW to the NNW at 7 mph 12 km/h.

Friday, September 11, 2026

Mid-Morning
Cos Cob Weather - 2026-09-11 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Cos Cob Weather - 2026-09-11 - Afternoon - Sunny
76°F 24°C
Sunny
Early-Evening
Cos Cob Weather - 2026-09-11 - Evening - Sunny
74°F 24°C
Sunny
Enjoyable around 76°F 24°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.

Saturday, September 12, 2026

Mid-Morning
Cos Cob Weather - 2026-09-12 - Morning - Partly Cloudy
66°F 19°C
Partly Cloudy
Mid-Afternoon
Cos Cob Weather - 2026-09-12 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-12 - Evening - Overcast
75°F 24°C
Overcast
Mild temperatures up to 74°F 23°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the NE to the S at 11 mph 18 km/h.

Sunday, September 13, 2026

Mid-Morning
Cos Cob Weather - 2026-09-13 - Morning - Light Showers
70°F 21°C
Light Showers
Mid-Afternoon
Cos Cob Weather - 2026-09-13 - Afternoon - Light Showers
75°F 24°C
Light Showers
Early-Evening
Cos Cob Weather - 2026-09-13 - Evening - Light Showers
74°F 23°C
Light Showers
Mild with a high of 75°F 24°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds swinging from the SSE to the NNW at 5 mph 8 km/h.

Monday, September 14, 2026

Mid-Morning
Cos Cob Weather - 2026-09-14 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Cos Cob Weather - 2026-09-14 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-14 - Evening - Overcast
79°F 26°C
Overcast
Pleasant near 79°F 26°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Cos Cob Weather - 2026-09-15 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
Cos Cob Weather - 2026-09-15 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Cos Cob Weather - 2026-09-15 - Evening - Cloudy
79°F 26°C
Cloudy
Warm and summery around 82°F 28°C (feels like 85°F 29°C), partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the S to the SSW at 11 mph 17 km/h.

Wednesday, September 16, 2026

Mid-Morning
Cos Cob Weather - 2026-09-16 - Morning - Light Showers
75°F 24°C
Light Showers
Mid-Afternoon
Cos Cob Weather - 2026-09-16 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Cos Cob Weather - 2026-09-16 - Evening - Cloudy
77°F 25°C
Cloudy
Quite warm around 82°F 28°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds turning from the NNW to the SW at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Cos Cob Weather - 2026-09-17 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Cos Cob Weather - 2026-09-17 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-17 - Evening - Overcast
71°F 22°C
Overcast
Mild temperatures up to 71°F 22°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the NNE to the N at 8 mph 12 km/h.

Friday, September 18, 2026

Mid-Morning
Cos Cob Weather - 2026-09-18 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Cos Cob Weather - 2026-09-18 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Cos Cob Weather - 2026-09-18 - Evening - Sunny
73°F 23°C
Sunny
Mild with a high of 73°F 23°C, sunny throughout the day, with steady humidity and barometric pressure falling.

Saturday, September 19, 2026

Mid-Morning
Cos Cob Weather - 2026-09-19 - Morning - Partly Cloudy
67°F 19°C
Partly Cloudy
Mid-Afternoon
Cos Cob Weather - 2026-09-19 - Afternoon - Overcast
78°F 25°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-19 - Evening - Overcast
75°F 24°C
Overcast
Pleasant near 78°F 25°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds moving from the W to the SSW at 10 mph 16 km/h.

Sunday, September 20, 2026

Mid-Morning
Cos Cob Weather - 2026-09-20 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Cos Cob Weather - 2026-09-20 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Cos Cob Weather - 2026-09-20 - Evening - Overcast
74°F 24°C
Overcast
Comfortable with temperatures reaching 74°F 23°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the NNE to the S at 8 mph 13 km/h.

Monday, September 21, 2026

Mid-Morning
Cos Cob Weather - 2026-09-21 - Morning - Light Showers
70°F 21°C
Light Showers
Mid-Afternoon
Cos Cob Weather - 2026-09-21 - Afternoon - Scattered Showers
74°F 24°C
Scattered Showers
Early-Evening
Cos Cob Weather - 2026-09-21 - Evening - Light Showers
73°F 23°C
Light Showers
Enjoyable around 74°F 24°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds shifting from the E to the NE at 8 mph 13 km/h.

Tuesday, September 22, 2026

Mid-Morning
Cos Cob Weather - 2026-09-22 - Morning - Light Showers
69°F 20°C
Light Showers
Mid-Afternoon
Cos Cob Weather - 2026-09-22 - Afternoon - Light Showers
70°F 21°C
Light Showers
Early-Evening
Cos Cob Weather - 2026-09-22 - Evening - Light Showers
72°F 22°C
Light Showers
Mild temperatures up to 70°F 21°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds turning from the NE to the SSE at 10 mph 15 km/h.

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Weather by the Numbers

Wed, 9th
Cos Cob CT Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 85°F 30°C
Lo: 62°F 16°C
Sunrise 06:29 AM
Sunset 07:14 PM
Wind SSW 11 mph18 km/h
Dew Point 67°F20°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 18% *
Humidity 71%
Thu, 10th
Cos Cob CT Weather - Thursday, Sep 10, 2026 - Partly Cloudy
Hi: 85°F 30°C
Lo: 70°F 21°C
Sunrise 06:30 AM
Sunset 07:12 PM
Wind WSW 10 mph16 km/h
Dew Point 67°F19°C
uv Index 3
Barometric Pressure 29.85 in1011 mb
POP 7% *
Humidity 66%
Fri, 11th
Cos Cob CT Weather - Friday, Sep 11, 2026 - Overcast
Hi: 77°F 25°C
Lo: 68°F 20°C
Sunrise 06:31 AM
Sunset 07:10 PM
Wind N 8 mph12 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 10% *
Humidity 43%
Sat, 12th
Cos Cob CT Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 76°F 24°C
Lo: 63°F 17°C
Sunrise 06:32 AM
Sunset 07:09 PM
Wind E 3 mph5 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 12% *
Humidity 50%
Sun, 13th
Cos Cob CT Weather - Sunday, Sep 13, 2026 - Light Rain Shower
Hi: 76°F 25°C
Lo: 69°F 21°C
Sunrise 06:33 AM
Sunset 07:07 PM
Wind S 14 mph23 km/h
Dew Point 71°F21°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 68% *
Humidity 93%
Mon, 14th
Cos Cob CT Weather - Monday, Sep 14, 2026 - Overcast
Hi: 81°F 27°C
Lo: 70°F 21°C
Sunrise 06:34 AM
Sunset 07:05 PM
Wind WNW 2 mph3 km/h
Dew Point 67°F19°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 18% *
Humidity 71%
Tue, 15th
Cos Cob CT Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 82°F 28°C
Lo: 73°F 23°C
Sunrise 06:35 AM
Sunset 07:03 PM
Wind S 7 mph11 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30.12 in1020 mb
POP 4% *
Humidity 64%
Wed, 16th
Cos Cob CT Weather - Wednesday, Sep 16, 2026 - Patchy Rain Nearby
Hi: 82°F 28°C
Lo: 69°F 21°C
Sunrise 06:36 AM
Sunset 07:02 PM
Wind NNW 4 mph6 km/h
Dew Point 68°F20°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 22% *
Humidity 70%
Thu, 17th
Cos Cob CT Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 73°F 23°C
Lo: 61°F 16°C
Sunrise 06:37 AM
Sunset 07:00 PM
Wind NE 3 mph5 km/h
Dew Point 51°F10°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 13% *
Humidity 54%
Fri, 18th
Cos Cob CT Weather - Friday, Sep 18, 2026 - Sunny
Hi: 75°F 24°C
Lo: 61°F 16°C
Sunrise 06:38 AM
Sunset 06:58 PM
Wind ENE 3 mph5 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 50%
Sat, 19th
Cos Cob CT Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 78°F 26°C
Lo: 63°F 17°C
Sunrise 06:39 AM
Sunset 06:57 PM
Wind SW 5 mph8 km/h
Dew Point 51°F11°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 7% *
Humidity 46%
Sun, 20th
Cos Cob CT Weather - Sunday, Sep 20, 2026 - Partly Cloudy
Hi: 76°F 24°C
Lo: 70°F 21°C
Sunrise 06:40 AM
Sunset 06:55 PM
Wind E 3 mph5 km/h
Dew Point 61°F16°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 5% *
Humidity 66%
Mon, 21st
Cos Cob CT Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 74°F 24°C
Lo: 70°F 21°C
Sunrise 06:41 AM
Sunset 06:53 PM
Wind E 9 mph14 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 41% *
Humidity 88%
Tue, 22nd
Cos Cob CT Weather - Tuesday, Sep 22, 2026 - Light Rain Shower
Hi: 73°F 23°C
Lo: 68°F 20°C
Sunrise 06:42 AM
Sunset 06:51 PM
Wind ENE 14 mph23 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 49% *
Humidity 96%
* POP = Probability of Precipitation. Data for 12:00 PM.