10-Day Weather Forecast - Port Jefferson, NY
Weekend Weather
- 24|6°F50% Chance of SnowHourly details
Today
24°FCloudy with a 50 percent chance of snow. Light freezing spray this afternoon. Windy cold with highs in the lower 20s. Northwest winds 20 to 30 mph. Gusts up to 40 mph increasing to 50 mph this afternoon. Wind chill values as low as 8 below this afternoon.
Tonight
6°FMostly cloudy in the evening then becoming partly cloudy. Freezing spray in the evening. Very windy and cold with lows around 6 above. Northwest winds 25 to 35 mph. Gusts up to 50 mph decreasing to 40 mph after midnight. Wind chill values as low as 14 below.
- 18|11°FSunnyHourly details
Day
18°FSunny brisk cold with highs around 20. Northwest winds 15 to 25 mph with gusts up to 35 mph. Wind chill values as low as 15 below in the morning.
Night
11°FMostly clear. Cold with lows around 10 above. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 5 below.
- 27|21°FSunnyHourly details
Day
27°FSunny cold with highs in the upper 20s. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the morning. Wind chill values as low as 3 below in the morning.
Night
21°FPartly cloudy. Lows 15 to 20.
- 32|31°FPartly SunnyHourly details
Day
32°FPartly sunny. Highs in the lower 30s.
Night
31°FMostly cloudy. Lows in the lower 20s.
- 38|27°FPartly SunnyHourly details
Day
38°FPartly sunny in the morning then becoming mostly cloudy. Highs in the upper 30s.
Night
27°FMostly cloudy in the evening then becoming partly cloudy. Lows in the lower 20s.
- 33|24°FPartly SunnyHourly details
Day
33°FPartly sunny in the morning then becoming mostly cloudy. Highs in the lower 30s.
Night
24°FMostly cloudy in the evening then clearing. Lows around 20.
- 33|28°FMostly Sunny
Day
33°FMostly sunny. Highs in the lower 30s.
Night
28°FMostly cloudy with a slight chance of snow. Chance of precipitation 30%. Low temperature around 28F. Dew point will be around 23F with an average humidity of 75%. Winds will be 9 mph from the N.
Weekend Weather
- 36|29°F30% Chance Frozen Mix
Day
36°FSunny with a slight chance of rain-snow mix. Chance of precipitation 30%. High temperature around 36F. Dew point will be around 19F with an average humidity of 56%. Winds will be 9 mph from the N.
Night
29°FClear. Low temperature around 29F. Dew point will be around 20F with an average humidity of 64%. Winds will be 7 mph from the N.
- 37|33°FMostly Sunny
Day
37°FMostly sunny. High temperature around 37F. Dew point will be around 19F with an average humidity of 53%. Winds will be 4 mph from the N.
Night
33°FMostly cloudy. Low temperature around 33F. Dew point will be around 23F with an average humidity of 65%. Winds will be 1 mph from the N.
- 40|34°FCloudy
Day
40°FCloudy. High temperature around 40F. Dew point will be around 24F with an average humidity of 57%. Winds will be 4 mph from the W.
Night
34°FMostly cloudy. Low temperature around 34F. Dew point will be around 25F with an average humidity of 64%. Winds will be 6 mph from the W.
