10-Day Weather Forecast - Port Jefferson, NY
- 47|35°F70% Chance of RainHourly details
Today
47°FRain likely. Not as cool with highs in the upper 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
Tonight
35°FMostly cloudy. Rain mainly 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.
- 33|25°FPartly SunnyHourly details
Day
33°FPartly sunny. A slight chance of snow showers in the afternoon. Breezy with highs in the mid 30s. West winds 15 to 25 mph with gusts up to 45 mph. Chance of snow 20 percent.
Night
25°FMostly cloudy in the evening then becoming partly cloudy. Blustery with lows in the mid 20s. West winds 15 to 25 mph. Gusts up to 45 mph decreasing to 35 mph after midnight.
- 33|28°FMostly SunnyHourly details
Day
33°FMostly sunny. Highs in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph.
Night
28°FPartly cloudy. Lows in the mid 20s.
Weekend Weather
- 36|29°FPartly SunnyHourly details
Day
36°FPartly sunny. Highs in the upper 30s.
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 lower 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°FMostly cloudy in the evening then becoming partly cloudy. Lows in the lower 20s.
- 30|27°FMostly Sunny
Day
30°FMostly sunny. Highs in the mid 30s.
Night
27°FPartly cloudy. Lows in the mid 20s.
- 35|36°FPartly Sunny
Day
35°FPartly sunny. Highs in the lower 40s.
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.














