Hart Island Weather Forecast

    • 58
    • 67

    Chance Rain Showers

    • 57
    • 68

    Mostly Sunny

    • 60
    • 67

    Mostly Cloudy

    • 62
    • 70

    Partly Sunny

    • 61
    • 69

    Chance Rain Showers

    • 60
    • 67

    Chance Rain Showers

    • 59
    • 66

    Slight Chance Rain Showers

Today 3 Jul Knox

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Highs in the mid 80s. Light and variable Winds. Chance of rain 50 percent.

Tonight 3 Jul Knox

Partly cloudy with scattered Showers and Thunderstorms this Evening, then mostly clear after midnight. Lows in the upper 50s. Light and variable Winds. Chance of rain 40 percent.

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Hart Island Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (13.7 miles)

  • Lowest 1 July, 2025

    57.9 °F

  • Average July

    64.4 °F

  • Highest 1 July, 2025

    73 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (13.7 miles)

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    55.3 °F
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