Hart Island Weather Forecast

    • 36
    • 43

    Rain Showers Likely

    • 32
    • 43

    Mostly Sunny

    • 26
    • 37

    Chance Snow Showers

    • 34
    • 38

    Mostly Sunny

    • 39
    • 41

    Breezy

    • 42
    • 46

    Partly Sunny

    • 39
    • 50

    Partly Sunny

Today 5 Apr Knox

Showers. Patchy fog. Highs in the upper 40s. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

Tonight 5 Apr Knox

Patchy fog in the evening. Cloudy with a chance of rain Showers in the Evening, then partly cloudy after midnight. Lows in the lower 30s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hart Island Temperature Statistics

April Temperature

Rockland, Knox County Regional Airport (13.7 miles)

  • Lowest 2 April, 2026

    33.1 °F

  • Average April

    38.5 °F

  • Highest 1 April, 2026

    52 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    54.9 °F
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