Nearby Harbors
40.9633’ N, 73.0400’ W

Mount Sinai, NY

57°
H -°
L 54°
NE
16mph
Low tide
4:25 am
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Mount Sinai, NY Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Sep 23 		Partly Cloudy -º / 54º 2% NE 17 mph 75%
Thu
Sep 24 		Partly Cloudy
View Hourly 		66º / 55º 3% NE 19 mph 61%
3am Mostly Cloudy 57º 2% NE 16 mph 73%
4am Mostly Cloudy 56º 2% NE 16 mph 75%
5am Partly Cloudy 56º 2% NE 16 mph 75%
6am Mostly Cloudy 56º 2% NE 18 mph 76%
7am Mostly Cloudy 55º 2% NE 18 mph 75%
8am Partly Cloudy 56º 2% NE 19 mph 75%
9am Mostly Cloudy 58º 2% NE 18 mph 71%
10am Mostly Cloudy 59º 4% NE 19 mph 67%
11am Mostly Cloudy 60º 1% NE 18 mph 65%
12pm Partly Cloudy 62º 0% NE 18 mph 61%
1pm Partly Cloudy 63º 0% NE 17 mph 57%
2pm Mostly Cloudy 64º 0% NE 17 mph 55%
3pm Mostly Cloudy 65º 0% NE 16 mph 52%
4pm Partly Cloudy 65º 0% NE 17 mph 51%
5pm Partly Cloudy 65º 0% NE 17 mph 51%
6pm Mostly Cloudy 64º 0% NE 16 mph 51%
7pm Mostly Cloudy 62º 0% NE 15 mph 53%
8pm Mostly Cloudy 61º 0% NE 16 mph 56%
9pm Cloudy 59º 0% NE 16 mph 57%
10pm Mostly Cloudy 58º 0% NE 15 mph 59%
11pm Mostly Cloudy 57º 0% NE 15 mph 61%
Fri
Sep 25 		PM Showers/Wind
View Hourly 		66º / 56º 40% NNE 25 mph 57%
12am Mostly Cloudy 56º 0% NE 16 mph 63%
1am Cloudy 56º 1% NE 15 mph 64%
2am Mostly Cloudy 56º 0% NE 16 mph 64%
3am Mostly Cloudy 56º 1% NNE 16 mph 65%
4am Cloudy 56º 1% NNE 16 mph 66%
5am Mostly Cloudy 56º 1% NNE 16 mph 65%
6am Cloudy 56º 1% NNE 17 mph 65%
7am Cloudy 57º 0% NNE 18 mph 64%
8am Cloudy/Wind 58º 0% NNE 21 mph 63%
9am Cloudy/Wind 59º 0% NNE 21 mph 61%
10am Cloudy/Wind 60º 0% NNE 23 mph 61%
11am Mostly Cloudy/Wind 62º 0% NNE 22 mph 58%
12pm Cloudy/Wind 63º 0% NNE 23 mph 55%
1pm Cloudy/Wind 64º 0% NNE 24 mph 54%
2pm Cloudy/Wind 64º 8% NNE 24 mph 54%
3pm Cloudy/Wind 65º 16% NNE 25 mph 53%
4pm Showers/Wind 64º 40% NNE 25 mph 54%
5pm Cloudy/Wind 64º 24% NNE 25 mph 52%
6pm Few Showers/Wind 63º 34% NNE 24 mph 54%
7pm Showers/Wind 62º 46% NNE 23 mph 59%
8pm Showers/Wind 61º 58% NNE 22 mph 63%
9pm Rain/Wind 60º 60% NNE 23 mph 66%
10pm Showers/Wind 59º 48% NNE 23 mph 67%
11pm Showers/Wind 59º 45% NNE 23 mph 68%
Sat
Sep 26 		Rain/Wind
View Hourly 		60º / 56º 92% NNE 28 mph 82%
12am Showers/Wind 59º 39% NNE 24 mph 71%
1am Showers/Wind 59º 50% NNE 23 mph 73%
2am Showers/Wind 59º 49% NNE 23 mph 73%
Sun
Sep 27 		Rain/Wind 61º / 57º 86% NNE 22 mph 89%
Mon
Sep 28 		Showers 63º / 56º 49% N 15 mph 82%
Tue
Sep 29 		Partly Cloudy 69º / 57º 9% NW 7 mph 75%
Wed
Sep 30 		Partly Cloudy 71º / 60º 19% WSW 9 mph 77%

Weather Radar for Mount Sinai, NY See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Mount Sinai, NY

Overnight
Low : 55ºF
NE wind around 21 kt, with gusts as high as 28 kt. Mostly clear. Seas around 2 ft.
Thursday
High : 67ºF
NE wind 17 to 20 kt, with gusts as high as 28 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
Low : 57ºF
NNE wind around 21 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 2 to 3 ft.
Friday
High : 66ºF
NNE wind around 23 kt, with gusts as high as 33 kt. A chance of showers. Seas around 3 ft.
Friday Night
Low : 59ºF
N wind around 24 kt, with gusts as high as 35 kt. Showers likely. Seas 2 ft building to 5 ft.
Saturday
High : 65ºF
N wind 21 to 23 kt, with gusts as high as 33 kt. Showers likely. Seas 5 ft subsiding to 3 ft.
Saturday Night
Low : 61ºF
N wind 20 to 24 kt, with gusts as high as 33 kt. Showers likely. Seas 3 ft building to 5 ft.
Sunday
High : 64ºF
N wind 20 to 23 kt decreasing to 17 to 20 kt in the afternoon. Winds could gust as high as 32 kt. Showers likely. Seas 2 to 3 ft.
Sunday Night
Low : 61ºF
N wind around 16 kt, with gusts as high as 24 kt. A chance of showers. Seas 2 to 3 ft.

NOAA Buoy Data Near Mount Sinai, NY See Map

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    Wind Speed Forecast for Mount Sinai, NY

    ThursdayFridaySaturday
    Wind Speed (MPH) 161818161515161822252323
    7am11am3pm7pm11pm3am7am11am3pm7pm11pm3am
    MPH 161818161515161822252323
    DIR NENENENENENENNENNENNENNENNENNE

    Current Weather Conditions In Mount Sinai, NY

    As Of: 3 minutes ago

    • 57ºF
    • 53ºF
    • 16mph
    • 0º (NE)
    • 26mph
    • Mostly Cloudy
    • 10mi
    • 30.41"
    • 73%
    • 0ºF

    The weather right now in Mount Sinai, NY is Mostly Cloudy. The current temperature is 57°F, and the expected high and low for today, Thursday, September 24, 2026, are -° high temperature and 54°F low temperature. The wind is currently blowing at 16 miles per hour, and coming from the Northeast. The wind is gusting to 26 mph. With the wind and the atmosphere the temperature feels like 53° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 73 percent, and air pressure at 30.41 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Gale Warning - 2:39am Thu Sep 24 2026

    ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 8 AM TO 6 PM EDT FRIDAY... ...GALE WATCH IS CANCELLED...

    WHAT: For the Small Craft Advisory, northeast winds 20 to 30 kt
    with gusts up to 35 kt and seas 3 to 6 feet on Long Island
    Sound. For the Gale Warning, north winds 25 to 30 kt with gusts
    up to 40 kt and seas 3 to 7 feet expected on Long Island Sound.

    WHERE: Long Island Sound east of Port Jefferson and New
    Haven, Peconic and Gardiners Bays, and South Shore Bays from
    Jones Inlet through Shinnecock Bay.

    WHEN: For the Small Craft Advisory, until 8 AM EDT Friday.
    For the Gale Warning, from 8 AM to 6 PM EDT Friday.

    IMPACTS: Strong winds will cause hazardous seas which could
    capsize or damage vessels and reduce visibility.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Mariners should alter plans to avoid these hazardous conditions.
    Remain in port, seek safe harbor, alter course, and/or secure the
    vessel for hazardous conditions.

    &&

    Small Craft Advisory - 2:39am Thu Sep 24 2026

    ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 8 AM TO 6 PM EDT FRIDAY... ...GALE WATCH IS CANCELLED...

    WHAT: For the Small Craft Advisory, northeast winds 20 to 30 kt
    with gusts up to 35 kt and seas 3 to 6 feet on Long Island
    Sound. For the Gale Warning, north winds 25 to 30 kt with gusts
    up to 40 kt and seas 3 to 7 feet expected on Long Island Sound.

    WHERE: Long Island Sound east of Port Jefferson and New
    Haven, Peconic and Gardiners Bays, and South Shore Bays from
    Jones Inlet through Shinnecock Bay.

    WHEN: For the Small Craft Advisory, until 8 AM EDT Friday.
    For the Gale Warning, from 8 AM to 6 PM EDT Friday.

    IMPACTS: Strong winds will cause hazardous seas which could
    capsize or damage vessels and reduce visibility.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Mariners should alter plans to avoid these hazardous conditions.
    Remain in port, seek safe harbor, alter course, and/or secure the
    vessel for hazardous conditions.

    &&

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