Port Jefferson Harbor Entrance Weather Forecast

    • 54
    • 70

    Increasing Clouds

    • 61
    • 66

    Chance Rain Showers

    • 63
    • 73

    Rain Showers Likely

    • 62
    • 74

    Chance Rain Showers

    • 63
    • 74

    Slight Chance Rain Showers

    • 63
    • 74

    Chance Rain Showers

Today 1 Jun Northwest Suffolk

Mostly sunny. Highs in the upper 60s. West Winds 10 to 15 Mph.

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Port Jefferson Harbor Entrance Temperature Statistics

June Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

  • Lowest

  • Average June

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Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2010–Present

    45.8 °F
  • Average 2010–Present

    53.1 °F
  • Average High 2010–Present

    60.3 °F
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