Enter your search query in the box below.

Old Greenwich, Connecticut Weather

Old Greenwich, 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 Old Greenwich, Fairfield County.

🌡️ Current Conditions
Loading current conditions…
24-Hour Forecast
Loading hourly forecast…
Current Conditions Detail
Loading detail…
7-Day Forecast
Loading 7-day forecast…
🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near Old Greenwich. Tide source:

Loading fishing conditions…
Loading tide data…
Loading tide chart…
🎣 Best times to fish today (solunar)
Loading solunar times…
Loading marine conditions…
✈️ Aviation Weather

Full aviation weather for Old Greenwich is published on the Westchester County Airport (KHPN) page, 13 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 Old Greenwich 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 Old Greenwich: Danbury Municipal Airport (KDXR) 39 km · Igor I Sikorsky Memorial Airport (KBDR) 40 km

Conditions reported at KHPN describe the airfield itself. Weather 13 km away can differ, particularly in terrain or near the coast. For conditions at Old Greenwich specifically, see the current conditions and forecast above.

🌿 Air Quality
Loading air quality data…

About Old Greenwich, Connecticut

Old Greenwich unfolds as a verdant tapestry, where the gentle slopes of Fairfield County meet the salty kiss of Long Island Sound. It lies 2.5 miles south-south-west of Stamford, CT (from Stamford, CT: bearing 213°T), and is situated 5.5 miles east-north-east of Port Chester. Here, stately homes, often with wide, welcoming porches, are softened by the embrace of mature oak and maple trees, their branches forming a leafy canopy that filters the sunlight into a dappled dance. The air, especially in the early morning, carries a clean, crisp scent, a blend of sea brine and the sweet perfume of blooming hydrangeas and roses, a fragrance that seems to cling to the very air. Along the Sound, the landscape transitions to marshy wetlands, a crucial habitat for migratory birds, and then to the sandy shores and rocky outcrops that define its maritime character, offering glimpses of sailboats bobbing lazily on the horizon. This enclave, with its roots stretching back to colonial times, has long been a place of quiet prosperity and enduring charm. Its history is intertwined with the maritime trade and the agricultural bounty of the surrounding lands, a legacy that can still be felt in the preserved architecture and the unhurried pace of life. The local economy, once reliant on fishing and farming, has evolved to embrace a sophisticated blend of retail, professional services, and a discerning appreciation for local artisans. Old Greenwich is not a place of grand pronouncements but of subtle distinctions; a place where the rhythm of the tides and the changing seasons are as much a part of the daily discourse as the hushed conversations on its tree-lined streets, a locale that cherishes its natural beauty and its well-established community bonds.

NWS Extended Forecast
Loading NWS forecast…
📡 Precipitation Radar

Live animated radar for Old Greenwich and surroundings — RainViewer.

Loading radar…
🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
Calculating…
LocationOld Greenwich, Fairfield County, Connecticut
Coordinates41.022875°N, 73.564846°W
TimezoneEastern Time (America/New_York)
ZIP Code(s)06870
Area Code203, 475, 860, 959
Page generatedSeptember 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Old Greenwich, Connecticut Weather Page

This page provides live weather conditions and forecasts for Old Greenwich, 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 Old Greenwich includes coordinates 41.022875°N, 73.564846°W, situated in Fairfield County. ZIP code 06870. 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.