Current Weather Forecast for Port Jefferson

NY 11777  |   3:58am

Weather Conditions

33°

Feels Like 23°

Clear

30° 45°

0

UV Index

Good

Air Quality

WNW 15 mph

Wind

0 in

rain

Today

Fri 3/13

40°

Highest Temperature

3%

Partly cloudy skies this morning will become overcast during the afternoon. High near 40F. Winds WSW at 10 to 20 mph.

Tonight

Fri 3/13

39°

Lowest Temperature

24%

Some clouds. Low 39F. Winds SSW at 15 to 25 mph.

Tomorrow

Sat 3/14

48°

Highest Temperature

1%

Partly cloudy and windy. High 48F. Winds W at 20 to 30 mph. Higher wind gusts possible.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Port Jefferson

Hourly Weather Forecast & Temperature

4AM

1%

33°

Feels Like 23°

Clear

WNW 14 mph

Wind

1017 mb

Pressure

56%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

5AM

1%

32°

Feels Like 23°

Clear

WNW 12 mph

Wind

1018 mb

Pressure

57%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

6AM

1%

31°

Feels Like 22°

Clear

WNW 11 mph

Wind

1019 mb

Pressure

58%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

7AM

1%

30°

Feels Like 22°

Clear

WNW 10 mph

Wind

1020 mb

Pressure

57%

Humidity

0

UV Index

10mi

Visibility

1%

Cloud Cover

8AM

1%

31°

Feels Like 23°

Sunny

W 9 mph

Wind

1021 mb

Pressure

55%

Humidity

0

UV Index

10mi

Visibility

4%

Cloud Cover

9AM

33°

Feels Like 25°

Sunny

W 9 mph

Wind

1021 mb

Pressure

51%

Humidity

1

UV Index

10mi

Visibility

0%

Cloud Cover

10AM

35°

Feels Like 28°

Partly Cloudy

W 9 mph

Wind

1021 mb

Pressure

46%

Humidity

2

UV Index

10mi

Visibility

30%

Cloud Cover

11AM

37°

Feels Like 31°

Partly Cloudy

W 9 mph

Wind

1021 mb

Pressure

43%

Humidity

3

UV Index

10mi

Visibility

47%

Cloud Cover

12PM

39°

Feels Like 33°

Cloudy

SW 8 mph

Wind

1020 mb

Pressure

39%

Humidity

3

UV Index

10mi

Visibility

83%

Cloud Cover

1PM

40°

Feels Like 33°

Cloudy

SW 11 mph

Wind

1019 mb

Pressure

37%

Humidity

3

UV Index

10mi

Visibility

80%

Cloud Cover

2PM

3%

40°

Feels Like 32°

Cloudy

SSW 13 mph

Wind

1019 mb

Pressure

38%

Humidity

2

UV Index

10mi

Visibility

98%

Cloud Cover

3PM

1%

40°

Feels Like 32°

Cloudy

SSW 13 mph

Wind

1017 mb

Pressure

41%

Humidity

1

UV Index

10mi

Visibility

99%

Cloud Cover

Fri 3/13

Fri

3%

30°

45°

Mostly cloudy. Highs in the low 40s and lows in the upper 30s.

22°

Feels Like

WSW 15 mph

Wind

48%

Humidity

3

UV Index

7:07 AM

Sunrise

6:56 PM

Sunset

Sat 3/14

Sat

1%

34°

48°

Windy with times of sun and clouds. Highs in the upper 40s and lows in the low 30s.

33°

Feels Like

W 23 mph

Wind

39%

Humidity

4

UV Index

7:05 AM

Sunrise

6:58 PM

Sunset

Sun 3/15

Sun

2%

31°

45°

Mostly cloudy. Highs in the low 40s with temperatures nearly steady overnight.

27°

Feels Like

E 12 mph

Wind

54%

Humidity

3

UV Index

7:03 AM

Sunrise

6:59 PM

Sunset

Mon 3/16

Mon

94%

43°

55°

Windy with periods of rain. Highs in the mid 50s and lows in the mid 30s.

42°

Feels Like

S 24 mph

Wind

95%

Humidity

2

UV Index

7:02 AM

Sunrise

7:00 PM

Sunset

Tue 3/17

Tue

24%

26°

51°

Partly cloudy and windy. Highs in the low 40s and lows in the low 20s.

25°

Feels Like

W 20 mph

Wind

44%

Humidity

5

UV Index

7:00 AM

Sunrise

7:01 PM

Sunset

Wed 3/18

Wed

23°

34°

Mostly sunny. Highs in the mid 30s and lows in the upper 20s.

15°

Feels Like

W 9 mph

Wind

41%

Humidity

5

UV Index

6:58 AM

Sunrise

7:02 PM

Sunset

Thu 3/19

Thu

5%

29°

44°

Mix of sun and clouds. Highs in the mid 40s and lows in the mid 30s.

27°

Feels Like

SSE 9 mph

Wind

60%

Humidity

4

UV Index

6:57 AM

Sunrise

7:03 PM

Sunset

Fri 3/20

Fri

18%

34°

44°

Partly cloudy. Highs in the mid 40s and lows in the mid 30s.

31°

Feels Like

WNW 9 mph

Wind

66%

Humidity

4

UV Index

6:55 AM

Sunrise

7:04 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

Millions along I-95 corridor see snow and cold temperatures after days of record warmth

After a few days of record heat, the spring tease is over. Snow has already started falling in parts of Virginia, Pennsylvania, West Virginia and New York as a cold front moves up the East Coast. Throughout the day on Thursday, temperatures in the 70s and 80s gave way, and snow started to spread along the I-95 corridor.

Back-to-back winter storms target millions across Midwest, New England with blizzard conditions, feet of snow

After a few days of spring-like temperatures, winter weather is expected to make a comeback as back-to-back storm systems are set to dump heavy snow across millions in the Northern Tier of the U.S. beginning Thursday.

Allergy season is worse than ever. Here are the 10 worst allergy capitals in the US for 2026

Allergy sufferers in the U.S. might've felt it for a while, but a new report shows that pollen allergy season is more intense and longer-lasting than ever.

Rare magnitude 2.3 earthquake rattles New York City suburbs

Westchester County reported shaking from a magnitude 2.3 earthquake on Tuesday morning.

Load More Stories