Hourly Weather Forecast - Cos Cob, CT

1 PM
38°F
0%
3mph
SW
Partly Cloudy
Humidity
52%
Feels like
35°F
Dew Point
22°F
2 PM
38°F
0%
4mph
SW
Partly Cloudy
Humidity
54%
Feels like
35°F
Dew Point
23°F
3 PM
37°F
0%
4mph
SW
Partly Cloudy
Humidity
57%
Feels like
34°F
Dew Point
23°F
4 PM
36°F
0%
4mph
SW
Mostly Cloudy
Humidity
60%
Feels like
33°F
Dew Point
24°F
4:28 PM
5 PM
35°F
0%
4mph
SSW
Partly Cloudy
Humidity
63%
Feels like
32°F
Dew Point
24°F
6 PM
34°F
0%
4mph
SSW
Mostly Clear
Humidity
65%
Feels like
31°F
Dew Point
24°F
7 PM
34°F
0%
4mph
S
Mostly Clear
Humidity
66%
Feels like
30°F
Dew Point
24°F
8 PM
34°F
0%
5mph
S
Mostly Clear
Humidity
68%
Feels like
29°F
Dew Point
24°F
9 PM
34°F
0%
5mph
SSW
Mostly Cloudy
Humidity
69%
Feels like
29°F
Dew Point
25°F
10 PM
34°F
0%
6mph
SSW
Mostly Cloudy
Humidity
71%
Feels like
28°F
Dew Point
25°F
11 PM
34°F
0%
6mph
SSW
Mostly Cloudy
Humidity
73%
Feels like
28°F
Dew Point
26°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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