Weather Forecast and Radar for Port Jefferson, New York

Weather in Port Jefferson, NY

Port Jefferson, New York, United States experiences all four seasons with a temperate climate. In the winter, temperatures range from an average low of 25°F to an average high of 42°F. During this time, snowfall ranges from 2 to 5 inches per month. In the spring, temperatures range from an average low of 42°F to an average high of 63°F. Rainfall is heaviest during this time, ranging from 3 to 5 inches per month. In the summer, temperatures range from an average low of 62°F to an average high of 83°F. Humidity levels are high during the summer and precipitation ranges from 2 to 5 inches per month. In the fall, temperatures range from an average low of 44°F to an average high of 65°F. Rainfall is lighter during this time, ranging from 1 to 3 inches per month.

Fast Facts About Port Jefferson, NY

As of 2020, the city population is 8016.

Major Cities Nearby Port Jefferson, NY

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Port Jefferson, New York.