Port Jefferson, NY Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Feb 21
AM Clouds/PM Sun
Close Hourly
39º / 28º 3% ESE 11 mph 59%
11am Mostly Cloudy 38º 1% E 10 mph 61%
12pm Mostly Cloudy 38º 1% E 11 mph 59%
1pm Mostly Cloudy 39º 1% E 11 mph 60%
2pm Partly Cloudy 39º 1% E 9 mph 56%
3pm Mostly Cloudy 39º 1% ESE 8 mph 55%
4pm Partly Cloudy 38º 1% ESE 8 mph 57%
5pm Partly Cloudy 37º 1% ESE 7 mph 60%
6pm Partly Cloudy 35º 3% ESE 6 mph 64%
7pm Partly Cloudy 34º 4% ESE 5 mph 68%
8pm Partly Cloudy 33º 5% ESE 4 mph 70%
9pm Partly Cloudy 32º 5% ESE 4 mph 73%
10pm Partly Cloudy 32º 5% E 3 mph 74%
11pm Partly Cloudy 32º 5% E 2 mph 75%
Thu
Feb 22
Mostly Cloudy
View Hourly
43º / 37º 19% S 8 mph 69%
12am Partly Cloudy 31º 6% E 2 mph 76%
1am Partly Cloudy 31º 6% ENE 2 mph 77%
2am Partly Cloudy 31º 6% NE 2 mph 77%
3am Partly Cloudy 31º 6% NE 2 mph 78%
4am Partly Cloudy 30º 6% NE 2 mph 79%
5am Partly Cloudy 30º 7% ENE 2 mph 80%
6am Partly Cloudy 29º 7% ENE 2 mph 83%
7am Partly Cloudy 29º 7% ESE 2 mph 84%
8am Partly Cloudy 31º 6% SE 2 mph 81%
9am Partly Cloudy 34º 5% SE 3 mph 73%
10am Partly Cloudy 36º 3% SSE 4 mph 67%
11am Partly Cloudy 38º 4% S 4 mph 65%
12pm Partly Cloudy 39º 5% SSW 6 mph 63%
1pm Partly Cloudy 40º 2% SSW 7 mph 63%
2pm Partly Cloudy 41º 5% SSW 8 mph 62%
3pm Mostly Cloudy 41º 3% SSW 8 mph 63%
4pm Mostly Cloudy 40º 6% SSW 8 mph 63%
5pm Cloudy 39º 7% S 8 mph 67%
6pm Cloudy 38º 20% S 7 mph 71%
7pm Cloudy 38º 22% S 7 mph 76%
8pm Cloudy 38º 17% S 6 mph 78%
9pm Few Showers 38º 33% S 7 mph 81%
10pm Showers 38º 40% S 7 mph 81%
11pm Showers 39º 45% S 8 mph 83%
Fri
Feb 23
Showers
View Hourly
47º / 26º 72% SW 10 mph 87%
12am Showers 39º 44% S 8 mph 84%
1am Showers 39º 38% SSE 8 mph 84%
2am Showers 39º 37% SSE 8 mph 86%
3am Cloudy 40º 24% SSE 9 mph 87%
4am Cloudy 40º 24% SSE 8 mph 87%
5am Few Showers 40º 34% SSE 8 mph 89%
6am Showers 41º 50% S 8 mph 89%
7am Showers 41º 48% S 8 mph 90%
8am Showers 43º 48% S 8 mph 90%
9am Showers 44º 51% S 10 mph 88%
10am Showers 45º 53% SSW 10 mph 86%
Sat
Feb 24
Partly Cloudy 32º / 22º 1% NW 16 mph 43%
Sun
Feb 25
Sunny 39º / 34º 1% WSW 12 mph 46%
Mon
Feb 26
Partly Cloudy 47º / 36º 24% WSW 12 mph 66%
Tue
Feb 27
PM Showers 50º / 45º 55% ESE 11 mph 73%
Wed
Feb 28
Showers 53º / 47º 58% SSW 16 mph 82%

Weather Radar for Port Jefferson, NY See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Port Jefferson, NY

Today
High : 40ºF
ESE wind around 7 kt. Partly sunny. Seas around 1 ft.
Tonight
Low : 31ºF
ESE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.
Thursday
High : 41ºF
Variable winds 5 kt or less. A slight chance of rain after 1pm. Seas 1 ft or less.
Thursday Night
Low : 38ºF
S wind 6 to 8 kt. A chance of rain. Seas 1 ft or less.
Friday
High : 45ºF
S wind 6 to 9 kt becoming WNW in the afternoon. Rain likely, mainly before 1pm. Seas 1 ft or less.
Friday Night
Low : 27ºF
NW wind 9 to 14 kt increasing to 14 to 19 kt after midnight. Cloudy during the early evening, then gradual clearing. Seas 1 ft or less.
Saturday
High : 34ºF
NW wind 14 to 18 kt, with gusts as high as 24 kt. Sunny. Seas 1 ft or less.
Saturday Night
Low : 25ºF
NNW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 21 kt. Mostly clear. Seas 1 ft or less.
Sunday
High : 40ºF
WNW wind 8 to 11 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

NOAA Buoy Data Near Port Jefferson, NY See Map

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    Wind Speed Forecast for Port Jefferson, NY

    WednesdayThursdayFriday
    Wind Speed (MPH) 1085222487898
    11am3pm7pm11pm3am7am11am3pm7pm11pm3am7am
    MPH 1085222487898
    DIR EESEESEENEESESSSWSSSSES

    Current Weather Conditions In Port Jefferson, NY

    As Of: 12 minutes ago

    • 38ºF
    • 30ºF
    • 10mph
    • 0º (E)
    • 16mph
    • Mostly Cloudy
    • 10mi
    • 30.47"
    • 61%
    • 0ºF

    The weather right now in Port Jefferson, NY is Mostly Cloudy. The current temperature is 38°F, and the expected high and low for today, Wednesday, February 21, 2024, are 39° high temperature and 28°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the East. The wind is gusting to 16 mph. With the wind and the atmosphere the temperature feels like 30° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 61 percent, and air pressure at 30.47 in. Visibility is 10 nautical miles. There are no current weather alert(s).