Hart Island Weather Forecast

    • 56
    • 65

    Patchy Fog

    • 55
    • 63

    Rain Likely

    • 57
    • 66

    Partly Sunny

    • 61
    • 76

    Partly Sunny

    • 60
    • 71

    Chance Rain Showers

    • 59
    • 73

    Mostly Sunny

    • 59
    • 71

    Partly Sunny

Today 6 Jul Knox

Mostly cloudy. Highs in the mid 70s. Light and variable Winds.

Tonight 6 Jul Knox

Mostly cloudy. Patchy fog. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hart Island Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (13.7 miles)

  • Lowest 1 July, 2026

    60.1 °F

  • Average July

    77.8 °F

  • Highest 2 July, 2026

    91.9 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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