MT SINAI, NY 11766 Weather Forecast & Current Conditions

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ISLIP, NY
Current Weather

12:56 AM EDT OCT 27, 2025
Clear
45°F
Feels Like: 42°F
Dewpoint: 36°F
Rel. Hum.: 71%
Visibility: 10 miles
Wind: NNW at 5 mph
Pressure: 30.37 inches
Last 72 hours

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MT SINAI, NY 11766
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Clear. Lows in the lower 40s. North winds 5 to 10 mph.
MONDAY
Sunny. Highs in the mid 50s. Northeast winds 5 to 10 mph.
MONDAY NIGHT
Partly cloudy. Lows in the lower 40s. Northeast winds 10 to 15 mph.
TUESDAY
Partly sunny. A slight chance of rain in the afternoon. Highs in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
TUESDAY NIGHT
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 40s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
WEDNESDAY
Partly sunny with a 40 percent chance of rain. Highs in the mid 50s.
WEDNESDAY NIGHT
Mostly cloudy with a 40 percent chance of rain. Lows in the mid 40s.
THURSDAY
Partly sunny with a chance of rain in the morning, then mostly cloudy with rain likely in the afternoon. Highs in the upper 50s. Chance of rain 60 percent.
THURSDAY NIGHT
Rain likely. Breezy with lows in the upper 40s. Chance of rain 70 percent.
FRIDAY
Mostly cloudy with rain likely in the morning, then partly sunny with a chance of rain in the afternoon. Breezy with highs in the lower 60s. Chance of rain 70 percent.
FRIDAY NIGHT
Mostly cloudy with a 40 percent chance of rain. Lows in the mid 40s.
SATURDAY
Mostly sunny. Highs in the upper 50s.
SATURDAY NIGHT
Partly cloudy. Lows in the mid 40s.

Visible Weather Satellite
MT SINAI, NY 11766
Infrared Weather Satellite
MT SINAI, NY 11766
NEXRAD Weather Radar
MT SINAI, NY 11766

ISLIP, NY 3 hourly weather forecast

weather forecast created  7:00 PM EST 10/26/2025
Monday
27 OCT 2025
MT SINAI, NY 11766 weather forecast Day 1, 0 hours 1 AM 45° 41° Clear 0%

0% Thunder
( 0% severe)
NNE   7 68% 35°
Low 42° MT SINAI, NY 11766 weather forecast Day 1, 3 hours 4 AM 43° 38° Clear NNE   8 76% 36°
High 57° MT SINAI, NY 11766 weather forecast Day 1, 6 hours 7 AM 43° 38° Clear 0%

0% Thunder
( 0% severe)
NNE   9 79% 37°

Clear



MT SINAI, NY 11766 weather forecast Day 1, 9 hours 10 AM 53° 50° Clear NNE   10 50% 35°
MT SINAI, NY 11766 weather forecast Day 1, 12 hours 1 PM 55° 52° Clear 0%

0% Thunder
( 0% severe)
N   10 43% 33°
MT SINAI, NY 11766 weather forecast Day 1, 15 hours 4 PM 54° 51° Clear NNE   9 45% 33°
MT SINAI, NY 11766 weather forecast Day 1, 18 hours 7 PM 49° 47° Partly Cloudy 1%

0% Thunder
( 0% severe)
NNE   6 58% 35°
MT SINAI, NY 11766 weather forecast Day 1, 21 hours 10 PM 47° 44° Partly Cloudy NE   7 65% 36°
Tuesday
28 OCT 2025
MT SINAI, NY 11766 weather forecast Day 2, 0 hours 1 AM 45° 40° Clear 0%

0% Thunder
( 2% severe)
NE   9 73% 37°
Low 42° MT SINAI, NY 11766 weather forecast Day 2, 3 hours 4 AM 44° 38° Clear NE   12 79% 38°
High 58° MT SINAI, NY 11766 weather forecast Day 2, 6 hours 7 AM 45° 39° Partly Cloudy 2%

0% Thunder
( 2% severe)
NE   13 82% 40°

Partly Cloudy



MT SINAI, NY 11766 weather forecast Day 2, 9 hours 10 AM 54° 50° Partly Cloudy NE   16 57% 39°
MT SINAI, NY 11766 weather forecast Day 2, 12 hours 1 PM 56° 52° Partly Cloudy 9%

0% Thunder
( 2% severe)
NE   16 53% 39°
MT SINAI, NY 11766 weather forecast Day 2, 15 hours 4 PM 56° 52° Mostly Cloudy NE   16 53% 39°
MT SINAI, NY 11766 weather forecast Day 2, 18 hours 7 PM 52° 47° Mostly Cloudy 28%
RAIN
<.01 in
0% Thunder
( 3% severe)
NE   14 63% 40°
MT SINAI, NY 11766 weather forecast Day 2, 21 hours 10 PM 50° 45° Mostly Cloudy NE   15 71% 41°

ISLIP, NY extended weather forecast

BAD DAY
BAD DATE
BAD DAY
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Low 38° Low 42° Low 41° Low 47° Low 45°
High 55° High 54° High 53° High 59° High 57°
MT SINAI, NY 11766 weather forecast Day 3 MT SINAI, NY 11766 weather forecast Day 4 MT SINAI, NY 11766 weather forecast Day 5 MT SINAI, NY 11766 weather forecast Day 6 MT SINAI, NY 11766 weather forecast Day 7
Mostly Cloudy
44% Rain
Overcast
44% Rain
Overcast
76% Rain
Overcast
75% Rain
Mostly Cloudy
40% Rain
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