Cos Cob, CT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Cos Cob, CT in one place.
Sunny, with a high near 90. Southwest wind 9 to 15 mph.
Local Weather Overview
This forecast page for Cos Cob, CT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 12, 2026 10:42 AM EDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Cos Cob, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 10:42 AM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cos Cob
Wednesday looks like the warmest upcoming period in Cos Cob at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Tuesday Night at about 17 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 10:42 AM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 74.
Sunny, with a high near 93.
A slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 72.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 87.
Partly cloudy, with a low around 71.
Mostly sunny, with a high near 85.
Partly cloudy, with a low around 69.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
9 to 15 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
74°F |
17 mph
SW
|
|
Wednesday
Jul 15
|
Sunny
|
93°F |
12 to 15 mph
W
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms
|
72°F |
7 to 15 mph
NW
|
|
Thursday
Jul 16
|
Slight Chance Rain Showers then Mostly Sunny
|
87°F |
6 to 10 mph
NW
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
71°F |
6 to 12 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny
|
85°F |
6 to 9 mph
NW
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
69°F |
7 to 10 mph
NW
|
|
Saturday
Jul 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
85°F |
9 mph
NW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
70°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cos Cob.