Hourly Weather Forecast - Cos Cob, CT

12 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
78%
Feels like
21°F
Dew Point
20°F
1 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
20°F
2 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
20°F
3 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
20°F
4 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
20°F
5 AM
26°F
0%
4mph
SW
Mostly Clear
Humidity
78%
Feels like
21°F
Dew Point
20°F
6 AM
26°F
0%
4mph
SW
Mostly Clear
Humidity
79%
Feels like
21°F
Dew Point
20°F
7 AM
27°F
0%
4mph
SW
Mostly Clear
Humidity
79%
Feels like
22°F
Dew Point
21°F
7:13 AM
8 AM
29°F
0%
4mph
SW
Sunny
Humidity
77%
Feels like
24°F
Dew Point
23°F
9 AM
31°F
0%
5mph
SW
Sunny
Humidity
75%
Feels like
26°F
Dew Point
24°F
10 AM
34°F
10%
5mph
SW
Sunny
Humidity
74%
Feels like
29°F
Dew Point
26°F
11 AM
36°F
10%
6mph
SW
Mostly Sunny
Humidity
72%
Feels like
31°F
Dew Point
28°F
12 PM
38°F
10%
6mph
SW
Mostly Sunny
Humidity
71%
Feels like
34°F
Dew Point
30°F
1 PM
40°F
0%
6mph
WSW
Mostly Sunny
Humidity
69%
Feels like
36°F
Dew Point
31°F
2 PM
41°F
0%
6mph
WSW
Mostly Sunny
Humidity
68%
Feels like
37°F
Dew Point
31°F
3 PM
41°F
0%
6mph
WSW
Partly Cloudy
Humidity
70%
Feels like
37°F
Dew Point
32°F
4 PM
40°F
0%
6mph
WSW
Partly Cloudy
Humidity
73%
Feels like
36°F
Dew Point
32°F
4:27 PM
5 PM
39°F
10%
5mph
WSW
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
31°F
6 PM
38°F
10%
5mph
WSW
Mostly Cloudy
Humidity
75%
Feels like
34°F
Dew Point
31°F
7 PM
37°F
10%
5mph
W
Mostly Cloudy
Humidity
77%
Feels like
33°F
Dew Point
30°F
8 PM
36°F
10%
4mph
W
Partly Cloudy
Humidity
78%
Feels like
32°F
Dew Point
30°F
9 PM
35°F
10%
4mph
W
Mostly Clear
Humidity
80%
Feels like
32°F
Dew Point
30°F
10 PM
35°F
10%
3mph
W
Clear
Humidity
80%
Feels like
32°F
Dew Point
29°F
11 PM
34°F
10%
3mph
WNW
Clear
Humidity
81%
Feels like
34°F
Dew Point
29°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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