Port Jefferson Harbor Entrance Weather Forecast

    • 50
    • 57

    Slight Chance Rain Showers

    • 46
    • 55

    Rain Showers

    • 44
    • 51

    Chance Rain Showers

    • 46
    • 56

    Partly Sunny

    • 44
    • 54

    Partly Sunny

    • 44
    • 53

    Slight Chance Rain Showers

Today 10 Apr Northwest Suffolk

Mostly cloudy. A slight chance of Showers early. Highs in the lower 60s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 10 Apr Northwest Suffolk

Mostly cloudy. A slight chance of Showers after midnight. Patchy fog after midnight. Lows around 50. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Jefferson Harbor Entrance Temperature Statistics

April Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

  • Lowest 3 April, 2021

    28.9 °F
  • Average April

    47.9 °F
  • Highest 8 April, 2021

    68 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2010–Present

    45.6 °F
  • Average 2010–Present

    52.9 °F
  • Average High 2010–Present

    60.1 °F
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