Updated 2026-09-26 11:00 local time · ZIP codes 06870
Light drizzle
* WHAT...Northeast winds 30 to 40 kt with gusts up to 45 kt and seas 5 to 8 ft. * WHERE...Long Island Sound west of Port Jefferson and New Haven. * WHEN...Until 6 PM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
60°49% rain60°59% rain60°53% rain
59°49% rain58°64% rain58°47% rain58°59% rain58°59% rain
58°48% rain58°55% rain
59°37% rain59°35% rainRain chance reaches about 64% over the next 12 hours.
It feels like 47°F with winds near 26 mph.
60°F, 49% rain chance and 26 mph wind.
Visibility is around 1 mi; gusts may reach 45 mph.
Current temperature is 60°F, wind 26 mph, rain chance up to 64%.
UV index is 1.
Connecticut has four distinct seasons, humid summers and cold winters, with coastal influence near Long Island Sound and periodic nor'easters in the colder months.
Old Greenwich is part of the Northeast weather region. The forecast point is near 41.02°N latitude and 73.57°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Light drizzle and 60°F in Old Greenwich, CT. Today's high is 62°F with a 86% rain chance. Winds are around 26 mph with gusts near 45 mph. Relative humidity is 80%, pressure is 29.83 inHg, and visibility is about 1 miles.
Sunrise is at 06:45 AM and sunset is at 06:45 PM. Tomorrow's forecast calls for Light rain shower with a high near 65°F and a low near 59°F. The maximum rain chance is 91%.
