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Port Jefferson

United States

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Fair

Mostly sunny

85°30°72°23°
8530°
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Forecast

  • Partly cloudy
    85°
    30°
    Precipitation
    0%
    10
    16

  • Partly cloudy
    84°
    29°
    Precipitation
    0%
    9
    14

  • Partly cloudy
    82°
    28°
    Precipitation
    0%
    9
    14

  • Fair
    81°
    28°
    Precipitation
    0%
    8
    13

  • Fair
    78°
    26°
    Precipitation
    0%
    8
    13

  • Fair
    76°
    25°
    Precipitation
    0%
    8
    13

  • Fair
    73°
    23°
    Precipitation
    0%
    9
    14

  • Fair
    73°
    23°
    Precipitation
    0%
    9
    14

  • Fair
    72°
    23°
    Precipitation
    0%
    9
    14

  • Fair
    71°
    22°
    Precipitation
    0%
    9
    14

  • Fair
    72°
    23°
    Precipitation
    0%
    9
    14

  • Fair
    72°
    23°
    Precipitation
    0%
    10
    16

  • Partly cloudy
    72°
    23°
    Precipitation
    0%
    11
    18

  • Partly cloudy
    72°
    23°
    Precipitation
    0%
    11
    18

  • Partly cloudy
    73°
    23°
    Precipitation
    2%
    12
    19

  • Mostly Cloudy
    74°
    24°
    Precipitation
    7%
    12
    19

  • Mostly Cloudy
    77°
    25°
    Precipitation
    7%
    14
    23

  • Mostly Cloudy
    79°
    27°
    Precipitation
    6%
    15
    24

  • Mostly Cloudy
    82°
    28°
    Precipitation
    5%
    16
    26

  • Mostly Cloudy
    83°
    29°
    Precipitation
    5%
    17
    27

  • Mostly Cloudy
    85°
    30°
    Precipitation
    8%
    17
    27

  • Mostly Cloudy
    87°
    31°
    Precipitation
    49%
    17
    27

  • Mostly Cloudy
    87°
    31°
    Precipitation
    15%
    15
    24

  • Mostly Cloudy
    86°
    30°
    Precipitation
    19%
    14
    23
TuesdayPartly cloudyPrecipitation
2%
85°
30°
72°
23°

Partly cloudy with a high of 85 °F (29.4 °C). Winds SSE at 10 mph (16.1 kph).

Night - Mostly clear. Winds from SSE to S at 8 to 11 mph (12.9 to 17.7 kph). The overnight low will be 71 °F (21.7 °C).

WednesdayThunderstormsPrecipitation
51%
87°
31°
70°
22°

Thunderstorms today with a high of 87 °F (30.6 °C) and a low of 70 °F (21.1 °C). There is a 51% chance of precipitation.

ThursdayThunderstormsPrecipitation
60%
80°
27°
68°
20°

Thunderstorms today with a high of 80 °F (26.7 °C) and a low of 68 °F (20 °C). There is a 60% chance of precipitation.

FridayCloudyPrecipitation
51%
82°
28°
63°
18°

Cloudy today with a high of 82 °F (27.8 °C) and a low of 63 °F (17.2 °C). There is a 51% chance of precipitation.

SaturdayPartly cloudyPrecipitation
6%
80°
27°
62°
17°

Partly cloudy today with a high of 80 °F (26.7 °C) and a low of 62 °F (16.7 °C).

SundayPartly cloudyPrecipitation
6%
82°
28°
64°
18°

Partly cloudy today with a high of 82 °F (27.8 °C) and a low of 64 °F (17.8 °C).

MondayMostly CloudyPrecipitation
51%
83°
29°
65°
19°

Mostly cloudy today with a high of 83 °F (28.3 °C) and a low of 65 °F (18.3 °C). There is a 51% chance of precipitation.

TuesdayThunderstormsPrecipitation
81%
80°
27°
64°
18°

Thunderstorms today with a high of 80 °F (26.7 °C) and a low of 64 °F (17.8 °C). There is a 81% chance of precipitation.

WednesdayMostly CloudyPrecipitation
51%
84°
29°
63°
18°

Mostly cloudy today with a high of 84 °F (28.9 °C) and a low of 63 °F (17.2 °C). There is a 51% chance of precipitation.

ThursdayThunderstormsPrecipitation
63%
84°
29°
61°
17°

Thunderstorms today with a high of 84 °F (28.9 °C) and a low of 61 °F (16.1 °C). There is a 63% chance of precipitation.

FridayFairPrecipitation
0%
85°
30°
63°
18°

Mostly sunny today with a high of 85 °F (29.4 °C) and a low of 63 °F (17.2 °C).

Precipitation

EveningNightOvernightEarly morning
Precipitation19%Precipitation0%Precipitation0%Precipitation2%

Wind & pressure

Windmill bladesWindmill pole
Windmill bladesWindmill pole
Wind
4 mph South-southeast
6 km/h South-southeast
Barometer
30.1 inches
1018.3 millibars

Details

Fair
RealFeel®
91°
33°
Humidity
31%
Visibility
3.98 miles
6.40 km
UV index
5 (Moderate)

Today - Partly cloudy with a high of 85 °F (29.4 °C). Winds SSE at 10 mph (16.1 kph).

Tonight - Mostly clear. Winds from SSE to S at 8 to 11 mph (12.9 to 17.7 kph). The overnight low will be 71 °F (21.7 °C).

Sun & moon

Waning Crescent
Waning Crescent

Map

Satellite

Weather news