10-Day Weather Forecast - Port Jefferson, NY
- 44|36°F70% Chance of RainHourly details
Today
44°FPartly sunny this morning then cloudy with rain likely this afternoon. Not as cool with highs in the upper 40s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.
Tonight
36°FMostly cloudy. Rain in the evening. Lows in the upper 20s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent.
- 35|25°FWindyHourly details
Day
35°FMostly sunny and windy. Highs in the upper 30s. West winds 20 to 30 mph with gusts up to 40 mph.
Night
25°FPartly cloudy and windy. Lows in the mid 20s. West winds 20 to 30 mph with gusts up to 40 mph.
- 33|28°FMostly SunnyHourly details
Day
33°FMostly sunny and brisk. Highs in the mid 30s. West winds 15 to 25 mph.
Night
28°FPartly cloudy in the evening then mostly cloudy with a chance of snow after midnight. Lows in the mid 20s. Chance of snow 30 percent.
Weekend Weather
- 36|29°FPartly SunnyHourly details
Day
36°FPartly sunny. Highs around 40.
Night
29°FMostly cloudy. A chance of snow after midnight. Lows in the mid 20s. Chance of snow 40 percent.
- 29|21°F40% Chance of SnowHourly details
Day
29°FMostly cloudy with a chance of snow in the morning then partly sunny in the afternoon. Highs in the mid 30s. Chance of snow 40 percent.
Night
21°FPartly cloudy in the evening then clearing. Lows around 20.
- 28|23°FSunnyHourly details
Day
28°FSunny. Highs in the lower 30s.
Night
23°FPartly cloudy in the evening then becoming mostly cloudy. Lows around 20.
- 30|27°FPartly Sunny
Day
30°FPartly sunny. Highs in the lower 30s.
Night
27°FClear. Low temperature around 27F. Dew point will be around 18F with an average humidity of 67%. Winds will be 7 mph from the NW.
- 35|36°FPartly Cloudy
Day
35°FPartly cloudy. High temperature around 35F. Dew point will be around 22F with an average humidity of 65%. Winds will be 8 mph from the SW.
Night
36°FCloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 36F. Dew point will be around 30F with an average humidity of 76%. Winds will be 11 mph from the SW.
- 42|37°F40% Chance of Rain
Day
42°FCloudy with a chance of rain. Chance of precipitation 40%. High temperature around 42F. Dew point will be around 33F with an average humidity of 76%. Winds will be 12 mph from the SW.
Night
37°FCloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 37F. Dew point will be around 33F with an average humidity of 77%. Winds will be 13 mph from the W.
- 40|34°F30% Chance of Rain
Day
40°FMostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 40F. Dew point will be around 28F with an average humidity of 64%. Winds will be 12 mph from the W.
Night
34°FPartly cloudy. Low temperature around 34F. Dew point will be around 26F with an average humidity of 69%. Winds will be 5 mph from the W.














