Port Jefferson, NY

Mostly cloudy; a shower cannot be ruled out

RealFeel®70°

RealFeel Shade™68°

Max UV Index3 (Moderate)

WindSE 8 mph

Wed 6/18

77° /68°

41%

Clouds and breaks of sun; humid and warmer with a thunderstorm in parts of the area

RealFeel®79°

RealFeel Shade™77°

Max UV Index4 (Moderate)

WindWSW 9 mph

Thu 6/19

85° /69°

55%

Mostly sunny, humid and warmer; a gusty thunderstorm in the afternoon; thunderstorms can bring hail and damaging winds

RealFeel®93°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindSW 13 mph

Fri 6/20

83° /64°

Mostly sunny; a thunderstorm cannot be ruled out

RealFeel®86°

RealFeel Shade™79°

Max UV Index11 (Extreme)

WindW 10 mph

Sat 6/21

80° /65°

Mostly sunny

RealFeel®84°

RealFeel Shade™77°

Max UV Index11 (Extreme)

WindWNW 10 mph

Sun 6/22

82° /71°

Clouds to start, then sunshine returns and humid

RealFeel®89°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindWSW 7 mph

Mon 6/23

88° /74°

Partly sunny, very warm and humid

RealFeel®98°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindESE 4 mph

Tue 6/24

92° /74°

Mostly sunny, hot and less humid

RealFeel®95°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSW 9 mph

Wed 6/25

89° /71°

Very warm with sun and areas of high clouds

RealFeel®92°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindW 14 mph

Thu 6/26

83° /70°

Less humid with sun through high clouds

RealFeel®88°

RealFeel Shade™81°

Max UV Index6 (High)

WindW 6 mph

Fri 6/27

82° /71°

11%

Humid with times of sun and clouds

RealFeel®91°

RealFeel Shade™85°

Max UV Index11 (Extreme)

WindSE 7 mph

Sat 6/28

83° /69°

Humid with times of sun and clouds

RealFeel®93°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindNW 9 mph

Sun 6/29

82° /66°

Turning cloudy and less humid

RealFeel®88°

RealFeel Shade™83°

Max UV Index7 (High)

WindWSW 4 mph

Mon 6/30

81° /68°

65%

A couple of morning showers and a thunderstorm; otherwise, humid with intervals of clouds and sunshine

RealFeel®89°

RealFeel Shade™84°

Max UV Index7 (High)

WindWNW 10 mph

Tue 7/1

78° /66°

Turning cloudy and less humid

RealFeel®87°

RealFeel Shade™76°

Max UV Index11 (Extreme)

WindSSW 4 mph

Wed 7/2

80° /70°

Humid with considerable cloudiness

RealFeel®86°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindWSW 12 mph

Thu 7/3

84° /68°

Mostly sunny and humid

RealFeel®91°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindNNE 8 mph

Fri 7/4

80° /69°

Humid with times of clouds and sun

RealFeel®87°

RealFeel Shade™81°

Max UV Index5 (Moderate)

WindSSE 4 mph

Sat 7/5

82° /70°

Turning cloudy and humid

RealFeel®86°

RealFeel Shade™84°

Max UV Index7 (High)

WindSSW 12 mph

Sun 7/6

58%

A couple of showers in the morning; otherwise, mostly cloudy and humid

RealFeel®93°

RealFeel Shade™91°

Max UV Index3 (Moderate)

WindSW 6 mph

Mon 7/7

Cloudy and uncomfortably humid

RealFeel®91°

RealFeel Shade™91°

Max UV Index3 (Moderate)

WindSSW 7 mph

Tue 7/8

84° /70°

Humid with times of sun and clouds

RealFeel®90°

RealFeel Shade™89°

Max UV Index4 (Moderate)

WindSSW 10 mph

Wed 7/9

83° /66°

65%

Cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®89°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindNNW 8 mph

Thu 7/10

79° /65°

10%

Mostly sunny and less humid

RealFeel®84°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindN 5 mph

Fri 7/11

79° /66°

Plenty of sun

RealFeel®87°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindSSW 5 mph

Sat 7/12

80° /70°

Clouds breaking at times for some sunshine

RealFeel®80°

RealFeel Shade™79°

Max UV Index5 (Moderate)

WindS 9 mph

Sun 7/13

82° /71°

Turning cloudy and humid

RealFeel®87°

RealFeel Shade™87°

Max UV Index5 (Moderate)

WindSSW 12 mph

Mon 7/14

Less humid with plenty of sunshine

RealFeel®93°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindNW 6 mph

Tue 7/15

84° /70°

Plenty of sunshine

RealFeel®94°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindWSW 4 mph

Wed 7/16

65%

A couple of morning showers and a thunderstorm; otherwise, clouds to start, then sunshine returns and humid

RealFeel®94°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindSW 12 mph

Thu 7/17

85° /67°

10%

Mostly sunny and less humid

RealFeel®88°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNW 9 mph

Fri 7/18

80° /65°

Mostly sunny

RealFeel®84°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindWNW 8 mph

Sat 7/19

79° /65°

Sunshine and a few clouds

RealFeel®88°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindSSE 5 mph

Sun 7/20

81° /71°

64%

Cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®83°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindS 8 mph

Mon 7/21

80° /71°

60%

Humid with intervals of clouds and sunshine; a thunderstorm in the afternoon

RealFeel®86°

RealFeel Shade™84°

Max UV Index5 (Moderate)

WindESE 7 mph

Tue 7/22

80° /70°

62%

Humid with more clouds than sun; a couple of showers and a thunderstorm in the afternoon

RealFeel®89°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindENE 2 mph

Wed 7/23

81° /71°

Increasing cloudiness and humid

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindSE 6 mph

Thu 7/24

80° /71°

Cloudy and humid

RealFeel®86°

RealFeel Shade™83°

Max UV Index3 (Moderate)

WindW 6 mph

Fri 7/25

81° /69°

Times of clouds and sun

RealFeel®88°

RealFeel Shade™80°

Max UV Index6 (High)

WindW 4 mph

Sat 7/26

83° /68°

Turning cloudy and humid

RealFeel®87°

RealFeel Shade™84°

Max UV Index5 (Moderate)

WindNNE 4 mph

Sun 7/27

83° /69°