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Over 100 million people at risk for daily severe storms, drenching rain into next week. Click for details Chevron right

Port Jefferson, NY

84°F
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Port Jefferson, NY Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

June 6 - July 20

Fri 6/6

84° /65°
55%
Partly sunny with a heavy thunderstorm this afternoon

RealFeel®97°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSW 8 mph

Sat 6/7

74° /63°
88%
Mostly cloudy with a couple of showers and a thunderstorm

RealFeel®78°

RealFeel Shade™72°

Max UV Index4 (Moderate)

WindNNW 7 mph

Sun 6/8

73° /61°
58%
Periods of clouds and sun with a shower in the area late in the afternoon

RealFeel®76°

RealFeel Shade™69°

Max UV Index7 (High)

WindE 12 mph

Mon 6/9

69° /62°
55%
A passing shower in the morning; otherwise, low clouds breaking for some sun

RealFeel®75°

RealFeel Shade™69°

Max UV Index4 (Moderate)

WindENE 5 mph

Tue 6/10

73° /65°
88%
Cloudy and humid with a couple of showers and a thunderstorm

RealFeel®76°

RealFeel Shade™71°

Max UV Index3 (Moderate)

WindSE 6 mph

Wed 6/11

80° /63°
1%
Mostly sunny

RealFeel®81°

RealFeel Shade™72°

Max UV Index11 (Extreme)

WindW 9 mph

Thu 6/12

82° /62°
12%
Partly sunny

RealFeel®85°

RealFeel Shade™79°

Max UV Index11 (Extreme)

WindW 10 mph

Fri 6/13

81° /64°
3%
Cloudy to partly sunny

RealFeel®83°

RealFeel Shade™79°

Max UV Index8 (Very High)

WindWNW 5 mph

Sat 6/14

78° /66°
17%
Turning cloudy

RealFeel®82°

RealFeel Shade™76°

Max UV Index11 (Extreme)

WindSSW 8 mph

Sun 6/15

77° /62°
25%
Mostly cloudy and humid

RealFeel®81°

RealFeel Shade™78°

Max UV Index5 (Moderate)

WindESE 7 mph

Mon 6/16

75° /61°
75%
Rain

RealFeel®76°

RealFeel Shade™73°

Max UV Index2 (Low)

WindSSE 5 mph

Tue 6/17

73° /62°
8%
Low clouds

RealFeel®73°

RealFeel Shade™73°

Max UV Index2 (Low)

WindNE 10 mph

Wed 6/18

74° /61°
2%
Mostly sunny

RealFeel®84°

RealFeel Shade™75°

Max UV Index11 (Extreme)

WindENE 4 mph

Thu 6/19

79° /64°
64%
A couple of morning showers and a thunderstorm; otherwise, mostly cloudy

RealFeel®79°

RealFeel Shade™77°

Max UV Index3 (Moderate)

WindNNE 9 mph

Fri 6/20

76° /62°
20%
Partly sunny and less humid

RealFeel®81°

RealFeel Shade™74°

Max UV Index11 (Extreme)

WindNNE 6 mph

Sat 6/21

75° /60°
25%
Partial sunshine

RealFeel®84°

RealFeel Shade™73°

Max UV Index11 (Extreme)

WindNE 2 mph

Sun 6/22

76° /65°
25%
Cloudy most of the time

RealFeel®76°

RealFeel Shade™73°

Max UV Index4 (Moderate)

WindSSW 9 mph

Mon 6/23

78° /67°
25%
Mostly cloudy

RealFeel®78°

RealFeel Shade™76°

Max UV Index6 (High)

WindSW 14 mph

Tue 6/24

82° /68°
25%
Mostly cloudy and humid

RealFeel®88°

RealFeel Shade™82°

Max UV Index6 (High)

WindSW 8 mph

Wed 6/25

84° /69°
20%
Mostly sunny and humid

RealFeel®87°

RealFeel Shade™82°

Max UV Index11 (Extreme)

WindSSW 14 mph

Thu 6/26

84° /69°
25%
Humid with sun and clouds

RealFeel®94°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindWSW 6 mph

Fri 6/27

83° /68°
55%
A passing shower in the morning; otherwise, decreasing clouds and humid

RealFeel®92°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindW 9 mph

Sat 6/28

84° /69°
20%
Humid with abundant sunshine

RealFeel®94°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindWSW 5 mph

Sun 6/29

85° /71°
20%
Mostly sunny and humid

RealFeel®93°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindWSW 9 mph

Mon 6/30

86° /69°
10%
Mostly sunny, very warm and less humid

RealFeel®91°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindWNW 8 mph

Tue 7/1

83° /68°
10%
Mostly sunny with low humidity

RealFeel®88°

RealFeel Shade™81°

Max UV Index11 (Extreme)

WindWNW 7 mph

Wed 7/2

78° /67°
10%
Brilliant sunshine

RealFeel®85°

RealFeel Shade™76°

Max UV Index11 (Extreme)

WindNNE 6 mph

Thu 7/3

80° /68°
69%
Mostly cloudy with periods of rain in the afternoon

RealFeel®78°

RealFeel Shade™76°

Max UV Index3 (Moderate)

WindNNE 13 mph

Fri 7/4

79° /69°
20%
Mostly sunny

RealFeel®86°

RealFeel Shade™76°

Max UV Index11 (Extreme)

WindWNW 6 mph

Sat 7/5

84° /68°
20%
Mostly cloudy

RealFeel®91°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindW 5 mph

Sun 7/6

85° /71°
25%
Mostly cloudy

RealFeel®85°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindWSW 7 mph

Mon 7/7

86° /71°
20%
Humid with sunshine and a few clouds

RealFeel®88°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindSSW 16 mph

Tue 7/8

86° /67°
20%
Mostly sunny

RealFeel®87°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNW 12 mph

Wed 7/9

79° /65°
25%
Becoming cloudy and less humid

RealFeel®86°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindNE 6 mph

Thu 7/10

80° /70°
57%
Mostly cloudy with a couple of showers, mainly later

RealFeel®78°

RealFeel Shade™78°

Max UV Index4 (Moderate)

WindSSW 13 mph

Fri 7/11

80° /69°
10%
Mostly sunny

RealFeel®85°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindNW 9 mph

Sat 7/12

81° /65°
10%
Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindENE 6 mph

Sun 7/13

80° /71°
25%
Cloudy

RealFeel®79°

RealFeel Shade™79°

Max UV Index3 (Moderate)

WindSW 9 mph

Mon 7/14

85° /71°
25%
Humid with decreasing clouds

RealFeel®89°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindSSW 15 mph

Tue 7/15

87° /68°
5%
Very warm and less humid with plenty of sunshine

RealFeel®89°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindNNW 10 mph

Wed 7/16

82° /69°
10%
Mostly sunny

RealFeel®89°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindS 6 mph

Thu 7/17

84° /71°
10%
Sunshine and humid

RealFeel®94°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindS 4 mph

Fri 7/18

85° /68°
1%
Sunshine and a few clouds

RealFeel®89°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindWSW 9 mph

Sat 7/19

86° /65°
64%
A couple of showers and a thunderstorm in the morning; otherwise, humid with a blend of sun and clouds

RealFeel®95°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindSW 5 mph

Sun 7/20

86° /65°
1%
Mostly sunny and less humid

RealFeel®93°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindNW 4 mph

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Weather Near Port Jefferson:

  • Bridgeport, CT
  • New York, NY
  • Newark, NJ
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