10-Day Weather Forecast - Port Jefferson, NY

-
  • 59|49°F
    Thunderstorms

    Today

    59°F

    Showers this morning then showers with a slight chance of thunderstorms this afternoon. Highs in the mid 60s. Southeast winds around 5 mph becoming northwest this afternoon. Chance of rain 90 percent.

    Tonight

    49°F

    Mostly cloudy with a chance of showers in the evening then partly cloudy with a slight chance of showers after midnight. Lows in the lower 50s. Northwest winds 5 to 10 mph. Chance of rain 40 percent.

    Hourly details
  • Day

    62°F

    Partly sunny. A chance of showers mainly in the morning. Highs in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 30 percent.

    Night

    52°F

    Partly cloudy in the evening then clearing. Lows in the mid 50s. North winds around 5 mph becoming west after midnight.

    Hourly details
  • Weekend Weather

  • Day

    72°F

    Sunny. Highs in the mid 70s. Southwest winds 10 to 15 mph.

    Night

    59°F

    Partly cloudy. Lows around 60.

    Hourly details
  • Day

    82°F

    Mostly sunny. Highs in the lower 80s.

    Night

    61°F

    Partly cloudy. Lows around 60.

    Hourly details
  • Day

    78°F

    Mostly sunny. Highs in the upper 70s.

    Night

    58°F

    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.

    Hourly details
  • Day

    83°F

    Mostly sunny. Highs around 80.

    Night

    67°F

    Partly cloudy. Lows in the lower 60s.

    Hourly details
  • Day

    86°F

    Mostly sunny. Highs in the lower 80s.

    Night

    61°F

    Partly cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 61F. Dew point will be around 60F with an average humidity of 77%. Winds will be 5 mph from the SW.

  • Day

    74°F

    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 74F. Dew point will be around 55F with an average humidity of 62%. Winds will be 3 mph from the NW.

    Night

    57°F

    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 57F. Dew point will be around 54F with an average humidity of 78%. Winds will be 2 mph from the N.

  • Day

    73°F

    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 72F. Dew point will be around 54F with an average humidity of 64%. Winds will be 2 mph from the S.

    Night

    57°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 57F. Dew point will be around 54F with an average humidity of 79%. Winds will be 2 mph from the N.

  • Weekend Weather

  • Day

    72°F

    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 72F. Dew point will be around 53F with an average humidity of 63%. Winds will be 2 mph from the N.

    Night

    56°F

    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 56F. Dew point will be around 53F with an average humidity of 81%. Winds will be 1 mph from the N.