Mount Sinai, NY Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Fri Jul 17 |
Partly Cloudy Close Hourly |
-º / 70º | 7% | SSW 7 mph | 76% | |
| 9pm | Partly Cloudy | 75º | 1% | SSW 5 mph | 62% | |
| 10pm | Partly Cloudy | 73º | 1% | SSW 5 mph | 68% | |
| 11pm | Partly Cloudy | 72º | 1% | SSW 5 mph | 71% | |
|
Sat Jul 18 |
PM Thunderstorms View Hourly |
80º / 71º | 72% | SSW 17 mph | 82% | |
| 12am | Partly Cloudy | 72º | 2% | SSW 6 mph | 74% | |
| 1am | Partly Cloudy | 72º | 2% | SSW 6 mph | 76% | |
| 2am | Partly Cloudy | 72º | 2% | SSW 6 mph | 81% | |
| 3am | Partly Cloudy | 71º | 3% | SSW 6 mph | 85% | |
| 4am | Partly Cloudy | 71º | 7% | SSW 6 mph | 89% | |
| 5am | Partly Cloudy | 71º | 7% | SSW 6 mph | 92% | |
| 6am | Partly Cloudy | 71º | 7% | SSW 7 mph | 92% | |
| 7am | Partly Cloudy | 73º | 5% | SSW 8 mph | 86% | |
| 8am | Mostly Cloudy | 76º | 7% | SSW 10 mph | 77% | |
| 9am | Partly Cloudy | 78º | 6% | SSW 12 mph | 71% | |
| 10am | Mostly Cloudy | 79º | 10% | SSW 13 mph | 68% | |
| 11am | Cloudy | 80º | 20% | SSW 15 mph | 68% | |
| 12pm | Scattered Thunderstorms | 78º | 57% | SSW 17 mph | 75% | |
| 1pm | Thunderstorms | 76º | 72% | SSW 16 mph | 81% | |
| 2pm | Thunderstorms | 75º | 68% | SSW 15 mph | 87% | |
| 3pm | Thunderstorms | 75º | 61% | SSW 13 mph | 92% | |
| 4pm | Scattered Thunderstorms | 75º | 55% | SSW 15 mph | 93% | |
| 5pm | Cloudy | 75º | 24% | SSW 15 mph | 90% | |
| 6pm | Scattered Thunderstorms | 76º | 56% | SSW 15 mph | 90% | |
| 7pm | Scattered Thunderstorms | 76º | 52% | SSW 14 mph | 89% | |
| 8pm | Thunderstorms | 75º | 61% | SSW 13 mph | 93% | |
| 9pm | Thunderstorms | 74º | 68% | SW 13 mph | 95% | |
| 10pm | Scattered Thunderstorms | 74º | 53% | SW 13 mph | 97% | |
| 11pm | Thunderstorms | 74º | 62% | SW 13 mph | 96% | |
|
Sun Jul 19 |
Partly Cloudy View Hourly |
80º / 62º | 5% | NW 14 mph | 56% | |
| 12am | Cloudy | 74º | 24% | WSW 11 mph | 96% | |
| 1am | Cloudy | 74º | 16% | WSW 12 mph | 95% | |
| 2am | Mostly Cloudy | 74º | 23% | W 12 mph | 94% | |
| 3am | Cloudy | 73º | 7% | W 12 mph | 92% | |
| 4am | Mostly Cloudy | 73º | 20% | W 12 mph | 90% | |
| 5am | Mostly Cloudy | 73º | 7% | W 11 mph | 87% | |
| 6am | Mostly Cloudy | 72º | 6% | WNW 11 mph | 87% | |
| 7am | Partly Cloudy | 73º | 5% | NW 11 mph | 84% | |
| 8am | Partly Cloudy | 73º | 2% | NW 13 mph | 76% | |
| 9am | Sunny | 74º | 1% | NW 13 mph | 67% | |
| 10am | Sunny | 75º | 1% | NW 14 mph | 60% | |
| 11am | Sunny | 76º | 0% | NW 14 mph | 55% | |
| 12pm | Sunny | 78º | 0% | NW 14 mph | 51% | |
| 1pm | Sunny | 79º | 0% | NW 14 mph | 49% | |
| 2pm | Sunny | 79º | 0% | NW 14 mph | 47% | |
| 3pm | Sunny | 80º | 0% | NW 13 mph | 44% | |
| 4pm | Sunny | 80º | 0% | NW 13 mph | 45% | |
| 5pm | Sunny | 79º | 0% | NW 11 mph | 44% | |
| 6pm | Sunny | 79º | 0% | NW 10 mph | 44% | |
| 7pm | Sunny | 77º | 0% | NNW 9 mph | 47% | |
| 8pm | Sunny | 76º | 0% | NNW 8 mph | 51% | |
|
Mon Jul 20 |
Sunny | 80º / 69º | 1% | WNW 8 mph | 52% | |
|
Tue Jul 21 |
Scattered Thunderstorms | 78º / 71º | 58% | S 15 mph | 76% | |
|
Wed Jul 22 |
Scattered Thunderstorms | 82º / 65º | 69% | WSW 14 mph | 73% | |
|
Thu Jul 23 |
Partly Cloudy | 80º / 66º | 19% | WNW 10 mph | 59% | |
|
Fri Jul 24 |
Mostly Sunny | 81º / 67º | 21% | NW 9 mph | 59% | |
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Buoy Data
For Mount Sinai, NY -
Wind Forecast
In Mount Sinai, NY -
Radar
In Mount Sinai, NY -
Marine Forecast
In Mount Sinai, NY
Weather Radar for Mount Sinai, NY See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Mount Sinai, NY
SSW wind around 6 kt. Widespread smoke, mainly between 11pm and 2am. Seas 1 ft or less.
SSW wind 8 to 13 kt, with gusts as high as 21 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Widespread smoke, mainly before 2pm. Seas 1 ft or less.
SSW wind 13 to 15 kt becoming WSW after midnight. Winds could gust as high as 21 kt. Showers and possibly a thunderstorm, mainly before 2am. Patchy smoke before 8pm. Seas around 1 ft.
NW wind 10 to 13 kt. Partly sunny, then gradually becoming sunny. Seas around 1 ft.
N wind 6 to 8 kt. Mostly clear. Seas around 1 ft.
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
S wind 6 to 9 kt. Partly cloudy. Seas 1 ft or less.
S wind 8 to 13 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
SSW wind 13 to 16 kt. A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Seas 1 ft or less.
NOAA Buoy Data Near Mount Sinai, NY See Map
Wind Speed Forecast for Mount Sinai, NY
| Saturday | Sunday | |||||||||||
| Wind Speed (MPH) | 5 | 6 | 6 | 12 | 16 | 15 | 13 | 12 | 11 | 13 | 14 | 11 |
| 1am | 5am | 9am | 1pm | 5pm | 9pm | 1am | 5am | 9am | 1pm | 5pm | 9pm | |
| MPH | 5 | 6 | 6 | 12 | 16 | 15 | 13 | 12 | 11 | 13 | 14 | 11 |
| DIR | SSW | SSW | SSW | SSW | SSW | SSW | SW | WSW | W | NW | NW | NW |
Current Weather Conditions In Mount Sinai, NY
As Of: 21 minutes ago
- 75ºF
- 75ºF
- 5mph
- 0º (SSW)
- 5mph
- Partly Cloudy
- 5mi
- 30.02"
- 62%
- 0ºF
The weather right now in Mount Sinai, NY is Partly Cloudy. The current temperature is 75°F, and the expected high and low for today, Friday, July 17, 2026, are -° high temperature and 70°F low temperature. The wind is currently blowing at 5 miles per hour, and coming from the South Southwest. The wind is gusting to 5 mph. With the wind and the atmosphere the temperature feels like 75° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 62 percent, and air pressure at 30.02 in. Visibility is 5 nautical miles. There are 2 current weather alert(s).
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT SATURDAY NIGHT...
The New York State Department of Environmental Conservation has
issued an Air Quality Health Advisory for the following counties:
New York, Bronx, Kings, Queens, Richmond, Nassau, Suffolk,
Westchester, Rockland, Orange, Putnam.
until midnight EDT Saturday night.
Air quality levels in outdoor air are predicted to be greater than
an Air Quality Index value of 100 for the pollutant of Fine
Particulates. The Air Quality Index, or AQI, was created as an easy
way to correlate levels of different pollutants to one scale. The
higher the AQI value, the greater the health concern.
When pollution levels are elevated, the New York State Department of
Health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very young, and those with
preexisting respiratory problems such as asthma or heart disease.
Those with symptoms should consider consulting their personal
physician.
For additional information, please visit the New York State
Department of Environmental Conservation website at,
https://on.ny.gov/nyaqi, or call the Air Quality Hotline at
1 800 5 3 5, 1 3 4 5.
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON SATURDAY TO MIDNIGHT EDT SATURDAY NIGHT...
WHAT: South winds 10 to 15 kt with gusts up to 25 kt.
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: From noon Saturday to midnight EDT Saturday night.
IMPACTS: Conditions will be hazardous to small craft.
PRECAUTIONARY / PREPAREDNESS ACTIONS:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
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