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

Day Sky High / Low Precip Wind Humidity
Sun
Aug 23 		AM Rain
Close Hourly 		75º / 69º 89% SSE 13 mph 91%
10am Rain 70º 95% ESE 14 mph 93%
11am Rain 70º 91% ESE 12 mph 92%
12pm Heavy Rain 72º 86% SE 9 mph 91%
1pm Partly Cloudy 73º 10% SSE 9 mph 90%
2pm Partly Cloudy 74º 15% SSE 9 mph 88%
3pm Partly Cloudy 75º 15% SSW 9 mph 86%
4pm Partly Cloudy 75º 15% SSW 10 mph 85%
5pm Partly Cloudy 75º 15% SSW 9 mph 87%
6pm Partly Cloudy 75º 15% SSW 10 mph 88%
7pm Partly Cloudy 74º 11% SSW 12 mph 88%
8pm Partly Cloudy 74º 11% SSW 12 mph 90%
9pm Partly Cloudy 73º 9% SSW 11 mph 89%
10pm Mostly Clear 73º 8% SSW 11 mph 90%
11pm Mostly Clear 73º 7% SW 11 mph 89%
Mon
Aug 24 		Sunny
View Hourly 		75º / 66º 10% SW 11 mph 72%
12am Clear 73º 7% SW 8 mph 88%
1am Clear 72º 6% SW 8 mph 87%
2am Clear 72º 5% WSW 8 mph 84%
3am Clear 71º 5% WSW 9 mph 81%
4am Clear 71º 5% W 8 mph 81%
5am Clear 70º 5% WSW 8 mph 80%
6am Clear 70º 5% WSW 7 mph 81%
7am Sunny 70º 5% WSW 7 mph 83%
8am Sunny 71º 5% WSW 6 mph 79%
9am Sunny 71º 5% WSW 7 mph 76%
10am Sunny 72º 4% WSW 8 mph 73%
11am Sunny 73º 3% SW 9 mph 71%
12pm Sunny 74º 3% SW 9 mph 69%
1pm Mostly Sunny 74º 2% SW 10 mph 69%
2pm Sunny 74º 2% SW 10 mph 69%
3pm Sunny 75º 2% SW 11 mph 68%
4pm Sunny 75º 10% SW 11 mph 69%
5pm Sunny 75º 8% SW 11 mph 70%
6pm Sunny 75º 3% SW 11 mph 72%
7pm Sunny 74º 4% SW 11 mph 76%
8pm Mostly Clear 73º 4% SW 10 mph 77%
9pm Partly Cloudy 72º 4% SW 9 mph 78%
10pm Partly Cloudy 72º 4% SW 9 mph 79%
11pm Clear 71º 4% WSW 10 mph 77%
Tue
Aug 25 		Mostly Sunny
View Hourly 		74º / 64º 6% W 13 mph 72%
12am Clear 71º 3% W 9 mph 78%
1am Clear 70º 4% W 9 mph 76%
2am Clear 69º 4% W 9 mph 76%
3am Clear 69º 3% WNW 9 mph 76%
4am Clear 68º 3% WNW 9 mph 76%
5am Clear 68º 4% W 9 mph 77%
6am Clear 67º 4% W 9 mph 77%
7am Sunny 67º 4% W 10 mph 78%
8am Sunny 68º 4% W 10 mph 77%
9am Sunny 69º 4% W 10 mph 75%
Wed
Aug 26 		Sunny 75º / 69º 5% W 9 mph 75%
Thu
Aug 27 		Partly Cloudy 75º / 69º 19% SSE 11 mph 84%
Fri
Aug 28 		AM Thunderstorms 76º / 68º 57% SSW 8 mph 89%
Sat
Aug 29 		Partly Cloudy 76º / 66º 5% WNW 7 mph 76%
Sun
Aug 30 		Partly Cloudy 74º / 68º 10% SE 8 mph 77%

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

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* Playback displays weather for the past 6 hours.

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

Today
High : 76ºF
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. East wind around 9 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Low : 69ºF
Partly cloudy, with a low around 69. West wind 8 to 10 mph.
Monday
High : 76ºF
Sunny, with a high near 76. Southwest wind 7 to 13 mph.
Monday Night
Low : 67ºF
Mostly clear, with a low around 67. West wind 9 to 11 mph.
Tuesday
High : 75ºF
Sunny, with a high near 75. West wind 13 to 15 mph.
Tuesday Night
Low : 66ºF
Mostly clear, with a low around 66.
Wednesday
High : 75ºF
Sunny, with a high near 75.
Wednesday Night
Low : 69ºF
Mostly clear, with a low around 69.
Thursday
High : 75ºF
Mostly sunny, with a high near 75.
Thursday Night
Low : 69ºF
Showers likely, mainly after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday
High : 76ºF
Showers likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Friday Night
Low : 69ºF
Partly cloudy, with a low around 69.
Saturday
High : 77ºF
Mostly sunny, with a high near 77.

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

    SundayMondayTuesday
    Wind Speed (MPH) 14910118781011999
    2pm6pm10pm2am6am10am2pm6pm10pm2am6am10am
    MPH 14910118781011999
    DIR ESESSESSWSSWWSWWSWWSWSWSWSWWW

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

    As Of: 8 minutes ago

    • 70ºF
    • 70ºF
    • 14mph
    • 0º (ESE)
    • 14mph
    • Rain
    • 5mi
    • 29.84"
    • 93%
    • 0ºF

    The weather right now in Plum Gut Harbor, Plum Island, NY is Rain. The current temperature is 70°F, and the expected high and low for today, Sunday, August 23, 2026, are 75° high temperature and 69°F low temperature. The wind is currently blowing at 14 miles per hour, and coming from the East Southeast. The wind is gusting to 14 mph. With the wind and the atmosphere the temperature feels like 70° Fahrenheit. Expected precipitation is 95 percent, with current humidity at 93 percent, and air pressure at 29.84 in. Visibility is 5 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Flood Advisory - 8:00am Sun Aug 23 2026

    ...FLOOD ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING...

    WHAT: Flooding caused by excessive rainfall is expected.

    WHERE: Eastern Nassau County in southeastern New York...
    Suffolk County in southeastern New York...

    WHEN: Until 1000 AM EDT.

    IMPACTS: Minor flooding in low-lying and poor drainage areas.
    Ponding of water in urban or other areas is occurring or is
    imminent.

    ADDITIONAL DETAILS: - At 800 AM EDT, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 0.5 and 1.5 inches of rain
    have fallen.
    - Additional rainfall amounts of 0.5 to 1.5 inches are expected
    over the area. This additional rain will result in minor
    flooding.
    - Some locations that will experience flooding include...
    Islip, Brentwood, Levittown, Commack, Riverhead, Huntington
    Station, Centereach, Shirley, Deer Park, Lindenhurst, Plainview,
    Medford, Massapequa, Hauppauge, Ronkonkoma, Syosset, Huntington,
    Manorville, Stony Brook and Babylon.
    - http://www.weather.gov/safety/flood

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Turn around, don't drown when encountering flooded roads. Most flood
    deaths occur in vehicles.

    &&