Plum Gut Harbor, Plum Island, NY Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sun
Aug 2
Scattered Thunderstorms -º / 73º 43% S 17 mph 95%
Mon
Aug 3
Thunderstorms/Wind
View Hourly
76º / 66º 82% SSW 22 mph 94%
12am Cloudy 74º 16% SSE 10 mph 96%
1am Cloudy 74º 18% S 13 mph 94%
2am Cloudy 75º 19% S 12 mph 93%
3am Cloudy 74º 21% S 14 mph 94%
4am Cloudy 74º 22% S 16 mph 93%
5am Cloudy 74º 17% SSW 17 mph 94%
6am Cloudy 74º 22% S 17 mph 95%
7am Scattered Thunderstorms 74º 46% S 18 mph 97%
8am Thunderstorms 75º 75% SSW 19 mph 96%
9am Thunderstorms/Wind 75º 71% SSW 20 mph 93%
10am Scattered Thunderstorms/Wind 75º 44% SSW 21 mph 92%
11am Thunderstorms/Wind 75º 65% SSW 21 mph 93%
12pm Thunderstorms/Wind 75º 65% SSW 22 mph 95%
1pm Thunderstorms/Wind 75º 69% SSW 21 mph 95%
2pm Thunderstorms/Wind 75º 83% SSW 20 mph 96%
3pm Thunderstorms 75º 67% SSW 18 mph 95%
4pm Showers 75º 46% SSW 18 mph 94%
5pm Scattered Thunderstorms 75º 39% SSW 17 mph 94%
6pm Thunderstorms 75º 79% SW 16 mph 92%
7pm Rain 75º 69% SW 16 mph 94%
8pm Showers 74º 39% SW 14 mph 94%
9pm Mostly Cloudy 74º 22% WSW 11 mph 93%
10pm Partly Cloudy 73º 21% W 11 mph 91%
11pm Partly Cloudy 73º 20% W 10 mph 89%
Tue
Aug 4
Partly Cloudy
View Hourly
76º / 68º 5% WSW 7 mph 76%
12am Partly Cloudy 72º 7% WNW 10 mph 87%
1am Mostly Cloudy 71º 5% NW 9 mph 84%
2am Partly Cloudy 70º 5% NW 9 mph 82%
3am Mostly Clear 69º 5% NW 8 mph 83%
4am Partly Cloudy 69º 5% NW 8 mph 83%
5am Clear 68º 5% NNW 7 mph 83%
6am Mostly Sunny 67º 5% NNW 6 mph 85%
7am Mostly Sunny 69º 5% NNW 5 mph 84%
8am Partly Cloudy 70º 5% NNW 5 mph 82%
9am Partly Cloudy 71º 5% NNW 5 mph 79%
10am Partly Cloudy 72º 5% NW 5 mph 76%
11am Partly Cloudy 73º 4% W 5 mph 76%
12pm Partly Cloudy 74º 5% SW 6 mph 74%
1pm Partly Cloudy 74º 5% SW 7 mph 74%
2pm Partly Cloudy 75º 4% SW 7 mph 73%
3pm Partly Cloudy 75º 4% SW 7 mph 73%
4pm Mostly Cloudy 75º 4% SSW 7 mph 73%
5pm Partly Cloudy 75º 4% SSW 6 mph 73%
6pm Partly Cloudy 75º 4% SSW 5 mph 75%
7pm Partly Cloudy 75º 4% SSW 5 mph 76%
8pm Partly Cloudy 74º 4% SSW 5 mph 77%
9pm Partly Cloudy 73º 5% SSW 4 mph 79%
10pm Partly Cloudy 72º 5% SSW 4 mph 82%
11pm Partly Cloudy 72º 5% SSW 3 mph 84%
Wed
Aug 5
Mostly Cloudy 75º / 72º 24% SE 8 mph 88%
Thu
Aug 6
Mostly Sunny 79º / 73º 24% SSW 13 mph 90%
Fri
Aug 7
Partly Cloudy 80º / 73º 24% SW 12 mph 87%
Sat
Aug 8
PM Thunderstorms 79º / 72º 38% WSW 11 mph 83%
Sun
Aug 9
Partly Cloudy 79º / 72º 24% SW 11 mph 83%

Weather Radar for Plum Gut Harbor, Plum Island, NY See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Plum Gut Harbor, Plum Island, NY

Tonight
Low : 71ºF
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Cloudy, with a low around 71. South wind 10 to 17 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
High : 76ºF
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 76. Breezy, with a south wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Low : 68ºF
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 68. Southwest wind 8 to 16 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
High : 76ºF
Sunny, with a high near 76. Northwest wind around 7 mph becoming southwest in the afternoon.
Tuesday Night
Low : 68ºF
Partly cloudy, with a low around 68. South wind around 6 mph becoming calm after midnight.
Wednesday
High : 76ºF
Mostly sunny, with a high near 76.
Wednesday Night
Low : 70ºF
Mostly cloudy, with a low around 70.
Thursday
High : 78ºF
Mostly sunny, with a high near 78.
Thursday Night
Low : 72ºF
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 72.
Friday
High : 78ºF
Mostly sunny, with a high near 78.
Friday Night
Low : 72ºF
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Saturday
High : 78ºF
Mostly sunny, with a high near 78.
Saturday Night
Low : 71ºF
A 30 percent chance of showers. Mostly cloudy, with a low around 71.
Sunday
High : 78ºF
Mostly sunny, with a high near 78.

NOAA Buoy Data Near Plum Gut Harbor, Plum Island, NY See Map

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    Wind Speed Forecast for Plum Gut Harbor, Plum Island, NY

    MondayTuesdayWednesday
    Wind Speed (MPH) 1016192218141085675
    4am8am12pm4pm8pm12am4am8am12pm4pm8pm12am
    MPH 1016192218141085675
    DIR SSESSSWSSWSSWSWWNWNWNNWSWSSWSSW

    Current Weather Conditions In Plum Gut Harbor, Plum Island, NY

    As Of: 26 minutes ago

    • 74ºF
    • 74ºF
    • 10mph
    • 0º (SSE)
    • 10mph
    • Cloudy
    • 5mi
    • 29.86"
    • 96%
    • 0ºF

    The weather right now in Plum Gut Harbor, Plum Island, NY is Cloudy. The current temperature is 74°F, and the expected high and low for today, Monday, August 3, 2026, are -° high temperature and 73°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the South Southeast. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 74° Fahrenheit. Expected precipitation is 16 percent, with current humidity at 96 percent, and air pressure at 29.86 in. Visibility is 5 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 2:37pm Sun Aug 2 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 8 PM EDT MONDAY...

    WHAT: South winds 10 to 20 kt with gusts up to 30 kt and seas
    around 2 feet expected.

    WHERE: Long Island Sound from Port Jefferson and New Haven
    east to Orient Point and the Connecticut River, and Peconic
    and Gardiners Bays.

    WHEN: From 4 AM to 8 PM EDT Monday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&