Cos Cob, Connecticut Weather
Cos Cob, Connecticut — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Cos Cob, Fairfield County.
Tides, marine forecast and fishing conditions near Cos Cob. Tide source:
Full aviation weather for Cos Cob is published on the Westchester County Airport (KHPN) page, 10 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 3 airfields within reach of Cos Cob have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Cos Cob: Danbury Municipal Airport (KDXR) 39 km · Igor I Sikorsky Memorial Airport (KBDR) 42 km
Conditions reported at KHPN describe the airfield itself. Weather 10 km away can differ, particularly in terrain or near the coast. For conditions at Cos Cob specifically, see the current conditions and forecast above.
About Cos Cob, Connecticut
Cos Cob lies at the confluence of placid waterways, where the gentle push of Greenwich Cove meets the broader sweep of Long Island Sound. It lies 3.5 miles west-south-west of Stamford, CT (from Stamford, CT: bearing 246°T), and is situated 8.5 miles east of White Plains. The land here, a soft undulation of well-tended lawns and mature trees, often catches the late afternoon sun in a way that softens edges and deepens the emerald hue of summer foliage. The air, carrying the faint, briny tang of the nearby coast, often hums with the distant, almost musical thrum of boat engines, a constant reminder of the maritime embrace that defines this corner of Fairfield County. Here, the architecture ranges from the stately colonial to more modern, understated residences, all contributing to a sense of established comfort and a quiet, well-ordered existence, where the changing seasons paint the landscape in broad, deliberate strokes. The history of Cos Cob is intricately tied to its connection with the water, once a bustling port for coastal trade and fishing fleets that lent the area its very name, derived from an Algonquian word for “a point of land.” This maritime past underpins its present-day character, a place that cherishes its heritage while embracing the sophisticated economic currents of the greater metropolitan region. Though no longer a hub of heavy industry, its local economy thrives on a blend of service-oriented businesses and the affluent residential base that finds its allure in Cos Cob's blend of natural beauty and accessible sophistication. The presence of the historic Greenwich Railroad Station, a vital link to the city, speaks to this enduring connectivity, a quiet testament to the enduring appeal of this picturesque locale.
Live animated radar for Cos Cob and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Cos Cob, Fairfield County, Connecticut |
| Coordinates | 41.03343°N, 73.59957°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 06807 |
| Area Code | 203, 475, 860, 959 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Cos Cob, Connecticut Weather Page
This page provides live weather conditions and forecasts for Cos Cob, Connecticut, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Cos Cob includes coordinates 41.033430°N, 73.599570°W, situated in Fairfield County. ZIP code 06807. Telephone area code: 203, 475, 860, 959. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
