Port Jefferson, New York | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    60% Chance of Rain
    72°
    Forecast night icon
    Night
    Mostly Cloudy
    55°
    Monday 5/6
    Day
    72°
    60% Chance of Rain
    Forecast day icon
    Night
    55°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 72F. Dew point will be around 60F with an average humidity of 87%. Winds will be 2 mph from the W.
    Night Details
    Mostly cloudy with a 20 percent chance of showers. Patchy fog this evening. Areas of fog after midnight. Lows in the mid 50s. Southwest winds around 5 mph becoming northwest after midnight.
  • Forecast day icon
    Tuesday
    Sunny
    72°
    Forecast night icon
    Night
    50% Chance Rain Showers
    54°
    Tuesday 5/7
    Day
    72°
    Sunny
    Forecast day icon
    Night
    54°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s. North winds around 5 mph becoming southeast in the afternoon.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a chance of showers after midnight. Lows in the mid 50s. South winds 5 to 10 mph. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    60% Chance of Storms
    69°
    Forecast night icon
    Night
    40% Chance of Storms
    56°
    Wednesday 5/8
    Day
    69°
    60% Chance of Storms
    Forecast day icon
    Night
    56°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a slight chance of thunderstorms. Highs in the lower 70s. South winds 5 to 10 mph. Chance of rain 60 percent.
    Night Details
    Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 50s. Southwest winds 5 to 10 mph becoming northwest after midnight. Chance of rain 40 percent.
  • Forecast day icon
    Thursday
    70% Chance of Rain
    68°
    Forecast night icon
    Night
    70% Chance of Rain
    50°
    Thursday 5/9
    Day
    68°
    70% Chance of Rain
    Forecast day icon
    Night
    50°
    70% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of rain in the morning then mostly cloudy with rain likely in the afternoon. Highs in the mid 60s. Chance of rain 70 percent.
    Night Details
    Rain likely. Lows in the lower 50s. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    50% Chance Rain Showers
    62°
    Forecast night icon
    Night
    50% Chance Rain Showers
    48°
    Friday 5/10
    Day
    62°
    50% Chance Rain Showers
    Forecast day icon
    Night
    48°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of rain in the morning then a chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s.
  • Forecast day icon
    Saturday
    30% Chance Rain Showers
    60°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Saturday 5/11
    Day
    60°
    30% Chance Rain Showers
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the morning. Highs in the lower 60s. Chance of rain 30 percent.
    Night Details
    Partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Sunday
    30% Chance Rain Showers
    64°
    Forecast night icon
    Night
    30% Chance Rain Showers
    52°
    Sunday 5/12
    Day
    64°
    30% Chance Rain Showers
    Forecast day icon
    Night
    52°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy with a chance of showers in the evening then partly cloudy after midnight. Lows in the upper 40s. Chance of rain 30 percent.
  • Forecast day icon
    Monday
    Partly Sunny
    67°
    Forecast night icon
    Night
    Clear
    53°
    Monday 5/13
    Day
    67°
    Partly Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Partly sunny. Highs in the mid 60s.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 51F with an average humidity of 84%. Winds will be 4 mph from the S.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    66°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Tuesday 5/14
    Day
    66°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 66F. Dew point will be around 53F with an average humidity of 74%. Winds will be 1 mph from the W.
    Night Details
    Mostly clear. Low temperature around 53F. Dew point will be around 51F with an average humidity of 85%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Wednesday
    Sunny
    68°
    Forecast night icon
    Night
    30% Chance of Rain
    53°
    Wednesday 5/15
    Day
    68°
    Sunny
    Forecast day icon
    Night
    53°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 50F with an average humidity of 65%. Winds will be 5 mph from the NW.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 53F. Dew point will be around 49F with an average humidity of 73%. Winds will be 4 mph from the NW.