Current Weather Forecast for Port Jefferson

NY 11777  |   3:43am

Weather Conditions

64°

Feels Like 64°

Cloudy

63° 78°

0

UV Index

Good

Air Quality

NNE 7 mph

Wind

0 in

rain

Today

Thu 9/18

78°

Highest Temperature

15%

Mostly cloudy early, then sunshine for the afternoon. Slight chance of a rain shower. High 78F. Winds NNW at 5 to 10 mph.

Tonight

Thu 9/18

63°

Lowest Temperature

6%

Clear skies. Low 63F. Winds W at 5 to 10 mph.

Tomorrow

Fri 9/19

80°

Highest Temperature

5%

Except for a few afternoon clouds, mainly sunny. High around 80F. Winds NW at 5 to 10 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Port Jefferson

Hourly Weather Forecast & Temperature

4AM

15%

64°

Feels Like 64°

Cloudy

NNE 7 mph

Wind

1015 mb

Pressure

96%

Humidity

0

UV Index

6mi

Visibility

96%

Cloud Cover

5AM

15%

64°

Feels Like 64°

Cloudy

NNE 7 mph

Wind

1015 mb

Pressure

96%

Humidity

0

UV Index

5mi

Visibility

93%

Cloud Cover

6AM

15%

64°

Feels Like 64°

Cloudy

N 6 mph

Wind

1015 mb

Pressure

94%

Humidity

0

UV Index

6mi

Visibility

90%

Cloud Cover

7AM

15%

65°

Feels Like 65°

Cloudy

N 6 mph

Wind

1015 mb

Pressure

87%

Humidity

0

UV Index

4mi

Visibility

90%

Cloud Cover

8AM

15%

66°

Feels Like 66°

Cloudy

N 6 mph

Wind

1015 mb

Pressure

85%

Humidity

0

UV Index

7mi

Visibility

85%

Cloud Cover

9AM

15%

68°

Feels Like 68°

Mostly Cloudy

N 6 mph

Wind

1015 mb

Pressure

81%

Humidity

1

UV Index

10mi

Visibility

79%

Cloud Cover

10AM

15%

69°

Feels Like 69°

Mostly Cloudy

N 6 mph

Wind

1015 mb

Pressure

75%

Humidity

3

UV Index

10mi

Visibility

66%

Cloud Cover

11AM

15%

71°

Feels Like 71°

Partly Cloudy

N 6 mph

Wind

1015 mb

Pressure

71%

Humidity

4

UV Index

10mi

Visibility

59%

Cloud Cover

12PM

7%

72°

Feels Like 72°

Partly Cloudy

NNW 5 mph

Wind

1015 mb

Pressure

63%

Humidity

6

UV Index

10mi

Visibility

44%

Cloud Cover

1PM

1%

74°

Feels Like 74°

Partly Cloudy

WNW 6 mph

Wind

1014 mb

Pressure

57%

Humidity

6

UV Index

10mi

Visibility

33%

Cloud Cover

2PM

75°

Feels Like 75°

Sunny

W 6 mph

Wind

1014 mb

Pressure

56%

Humidity

6

UV Index

10mi

Visibility

15%

Cloud Cover

3PM

77°

Feels Like 77°

Sunny

W 7 mph

Wind

1013 mb

Pressure

53%

Humidity

4

UV Index

10mi

Visibility

16%

Cloud Cover

Thu 9/18

Thu

15%

63°

78°

Morning clouds followed by afternoon sun. Highs in the upper 70s and lows in the low 60s.

78°

Feels Like

NNW 7 mph

Wind

74%

Humidity

6

UV Index

6:35 AM

Sunrise

6:55 PM

Sunset

Fri 9/19

Fri

5%

63°

80°

Mostly sunny. Highs in the low 80s and lows in the upper 50s.

81°

Feels Like

NW 9 mph

Wind

61%

Humidity

6

UV Index

6:36 AM

Sunrise

6:53 PM

Sunset

Sat 9/20

Sat

1%

57°

69°

Sunny. Highs in the upper 60s and lows in the mid 50s.

69°

Feels Like

ENE 13 mph

Wind

52%

Humidity

6

UV Index

6:37 AM

Sunrise

6:52 PM

Sunset

Sun 9/21

Sun

4%

55°

69°

Times of sun and clouds. Highs in the upper 60s and lows in the mid 50s.

69°

Feels Like

E 11 mph

Wind

58%

Humidity

6

UV Index

6:38 AM

Sunrise

6:50 PM

Sunset

Mon 9/22

Mon

6%

54°

72°

A few clouds. Highs in the low 70s and lows in the low 60s.

72°

Feels Like

SSE 9 mph

Wind

69%

Humidity

6

UV Index

6:39 AM

Sunrise

6:48 PM

Sunset

Tue 9/23

Tue

24%

63°

77°

Times of sun and clouds. Highs in the upper 70s and lows in the mid 60s.

77°

Feels Like

SW 11 mph

Wind

75%

Humidity

6

UV Index

6:40 AM

Sunrise

6:47 PM

Sunset

Wed 9/24

Wed

20%

65°

78°

Partly cloudy. Highs in the upper 70s and lows in the mid 60s.

80°

Feels Like

SE 8 mph

Wind

75%

Humidity

6

UV Index

6:41 AM

Sunrise

6:45 PM

Sunset

Thu 9/25

Thu

24%

64°

73°

Considerable cloudiness. Highs in the low 70s and lows in the low 60s.

73°

Feels Like

ESE 10 mph

Wind

78%

Humidity

5

UV Index

6:42 AM

Sunrise

6:43 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Latest Stories from New York

Northern Lights wow in Midwest, northern US during strong solar storm

Charged particles from the Sun fueled a strong geomagnetic storm from late Sunday into Monday, delivering impressive displays of Northern Lights as far south as the Midwest.

Coastal flood threat, dangerous beach conditions linger across mid-Atlantic, Southeast and Florida

A flood threat to low-lying East Coast communities and dangerous beach conditions remain through Thursday, as a sprawling front that was parked for days just off the Eastern Seaboard will finally begin to move farther into the Atlantic Ocean as we head into the weekend.

Images show road collapse in New York after heavy rain

Part of a parkway north of New York City remains closed after heavy rain caused the road to buckle, according to New York State Department of Transportation officials.

Tornado rips across central Massachusetts as severe thunderstorms cause damage across Northeast

Powerful thunderstorms tore across parts of the Northeast and New England on Saturday, including reports of a tornado that caused damage in central Massachusetts.

Load More Stories