Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 76

    Sunny

    • 59
    • 74

    Mostly Sunny

    • 60
    • 65

    Rain Showers Likely

    • 59
    • 66

    Rain Showers Likely

    • 60
    • 74

    Mostly Sunny

    • 61
    • 73

    Chance Rain Showers

Today 14 Aug Knox

Sunny. Highs in the upper 70s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 14 Aug Knox

Clear. Lows in the mid 50s. Northwest Winds around 10 Mph in the Evening, becoming light and variable.

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Isle Au Haut - Old Cove Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    70.7 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (24.2 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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