PORT JEFFERSON, NY 11777 Weather Forecast & Current Conditions

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ISLIP, NY
Current Weather

9:56 AM EDT APR 29, 2025
Few Clouds
64°F
Feels Like: 63°F
Dewpoint: 37°F
Rel. Hum.: 37%
Visibility: 10 miles
Wind: SSW at 15 mph, gusts to 25
Pressure: 30.20 inches
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PORT JEFFERSON, NY 11777
Weather Forecast

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TODAY
Sunny. Highs in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph.
TONIGHT
Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the upper 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.
WEDNESDAY
Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Northwest winds 10 to 15 mph. Chance of rain 20 percent.
WEDNESDAY NIGHT
Mostly clear. Lows in the upper 40s. North winds 5 to 10 mph.
THURSDAY
Mostly sunny. Highs in the mid 60s. East winds 5 to 10 mph, becoming southeast in the afternoon.
THURSDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 50 percent.
FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs around 70. Chance of rain 50 percent.
FRIDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60 percent.
SATURDAY
Showers likely. Highs in the upper 60s. Chance of rain 60 percent.
SATURDAY NIGHT
Mostly cloudy with showers likely in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 40s. Chance of rain 60 percent.
SUNDAY
Partly sunny. A chance of showers in the morning. Highs in the mid 60s. Chance of rain 40 percent.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 40s.
MONDAY
Mostly sunny. Highs in the mid 60s.

Visible Weather Satellite
PORT JEFFERSON, NY 11777
Infrared Weather Satellite
PORT JEFFERSON, NY 11777
NEXRAD Weather Radar
PORT JEFFERSON, NY 11777

ISLIP, NY 3 hourly weather forecast

weather forecast created  8:00 PM EDT  4/28/2025
Tuesday
29 APR 2025
PORT JEFFERSON, NY 11777 weather forecast Day 1, 0 hours 2 AM 54° 52° Clear 0%

0% Thunder
( 0% severe)
SW   7 59% 40°
Low 51° PORT JEFFERSON, NY 11777 weather forecast Day 1, 3 hours 5 AM 52° 50° Clear SW   7 63% 40°
High 69° PORT JEFFERSON, NY 11777 weather forecast Day 1, 6 hours 8 AM 58° 56° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   8 55% 42°

Partly Cloudy



PORT JEFFERSON, NY 11777 weather forecast Day 1, 9 hours 11 AM 67° 67° Partly Cloudy SSW   14 34% 38°
PORT JEFFERSON, NY 11777 weather forecast Day 1, 12 hours 2 PM 68° 68° Partly Cloudy 0%

0% Thunder
( 1% severe)
SSW   18 40% 43°
PORT JEFFERSON, NY 11777 weather forecast Day 1, 15 hours 5 PM 65° 65° Partly Cloudy SSW   20 48% 45°
PORT JEFFERSON, NY 11777 weather forecast Day 1, 18 hours 8 PM 60° 57° Partly Cloudy 12%
RAIN
<.01 in
0% Thunder
( 9% severe)
SSW   17 62% 47°
PORT JEFFERSON, NY 11777 weather forecast Day 1, 21 hours 11 PM 59° 56° Partly Cloudy SSW   16 67% 48°
Wednesday
30 APR 2025
PORT JEFFERSON, NY 11777 weather forecast Day 2, 0 hours 2 AM 60° 57° Mostly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 6% severe)
SW   15 69% 50°
Low 57° PORT JEFFERSON, NY 11777 weather forecast Day 2, 3 hours 5 AM 60° 58° Mostly Cloudy WSW   13 75% 52°
High 72° PORT JEFFERSON, NY 11777 weather forecast Day 2, 6 hours 8 AM 63° 62° Partly Cloudy 1%

0% Thunder
( 0% severe)
WNW   12 67% 52°

Partly Cloudy



PORT JEFFERSON, NY 11777 weather forecast Day 2, 9 hours 11 AM 68° 68° Partly Cloudy NW   13 42% 44°
PORT JEFFERSON, NY 11777 weather forecast Day 2, 12 hours 2 PM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   12 32% 40°
PORT JEFFERSON, NY 11777 weather forecast Day 2, 15 hours 5 PM 69° 69° Partly Cloudy NNW   9 32% 38°
PORT JEFFERSON, NY 11777 weather forecast Day 2, 18 hours 8 PM 62° 62° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   5 41% 38°
PORT JEFFERSON, NY 11777 weather forecast Day 2, 21 hours 11 PM 56° 55° Partly Cloudy N   5 51% 38°

ISLIP, NY extended weather forecast

Thursday
1 MAY 2025
Friday
2 MAY 2025
Saturday
3 MAY 2025
Sunday
4 MAY 2025
Monday
5 MAY 2025
Low 45° Low 52° Low 55° Low 47° Low 47°
High 65° High 69° High 65° High 63° High 67°
PORT JEFFERSON, NY 11777 weather forecast Day 3 PORT JEFFERSON, NY 11777 weather forecast Day 4 PORT JEFFERSON, NY 11777 weather forecast Day 5 PORT JEFFERSON, NY 11777 weather forecast Day 6 PORT JEFFERSON, NY 11777 weather forecast Day 7
Mostly Cloudy
11% Rain
Overcast
64% Rain
Overcast
84% Rain
Partly Cloudy
39% Rain
Clear
11% Rain
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