10-Day Weather Forecast - Port Jefferson, NY
- 29|23°FMostly SunnyHourly details
Today
29°FMostly sunny. Cold with highs in the upper 20s. North winds around 5 mph.
Tonight
23°FMostly clear in the evening then becoming partly cloudy. Lows in the lower 20s. South winds around 5 mph.
- 39|38°FFrozen MixHourly details
Day
39°FRain and snow likely in the morning then rain with a slight chance of snow in the afternoon. Little or no snow accumulation. Highs around 40. Southeast winds around 5 mph. Chance of precipitation 90 percent.
Night
38°FRain. Lows in the mid 30s. Southwest winds 5 to 10 mph. Chance of rain 90 percent.
- 48|36°FPartly SunnyHourly details
Day
48°FMostly cloudy in the morning then becoming partly sunny. Highs in the mid 40s.
Night
36°FCloudy with a 50 percent chance of rain. Lows in the upper 30s.
- 44|37°F50% Chance of RainHourly details
Day
44°FCloudy with a 50 percent chance of rain. Highs in the lower 50s.
Night
37°FCloudy with a 50 percent chance of rain. Lows in the upper 30s.
- 44|37°F50% Chance of RainHourly details
Day
44°FCloudy. A chance of rain in the morning. Highs in the mid 40s. Chance of rain 50 percent.
Night
37°FCloudy. Lows in the mid 30s.
Weekend Weather
- 52|46°FCloudyHourly details
Day
52°FCloudy. Highs in the lower 50s.
Night
46°FMostly cloudy with a 50 percent chance of rain. Lows in the lower 40s.
- 57|48°FPartly Sunny
Day
57°FMostly cloudy in the morning then becoming partly sunny. Highs in the lower 50s.
Night
48°FCloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 46F with an average humidity of 92%. Winds will be 5 mph from the SW.
- 56|47°F30% Chance of Rain
Day
56°FMostly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 56F. Dew point will be around 44F with an average humidity of 71%. Winds will be 3 mph from the SW.
Night
47°FPartly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 47F. Dew point will be around 44F with an average humidity of 85%. Winds will be 4 mph from the S.
- 56|49°FCloudy
Day
56°FCloudy. High temperature around 56F. Dew point will be around 45F with an average humidity of 74%. Winds will be 6 mph from the S.
Night
49°FCloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 49F. Dew point will be around 46F with an average humidity of 88%. Winds will be 9 mph from the S.
- 57|45°F40% Chance of Rain
Day
57°FCloudy with a chance of rain. Chance of precipitation 40%. High temperature around 57F. Dew point will be around 47F with an average humidity of 77%. Winds will be 9 mph from the SW.
Night
45°FCloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 45F. Dew point will be around 42F with an average humidity of 84%. Winds will be 6 mph from the SW.
