Isle Au Haut - Old Cove Weather Forecast

    • 63
    • 74

    Areas Fog

    • 63
    • 73

    Chance Rain Showers

    • 64
    • 70

    Partly Sunny

    • 63
    • 74

    Partly Sunny

    • 62
    • 73

    Chance Rain Showers

    • 61
    • 72

    Slight Chance Rain Showers

Today 7 Aug Knox

Areas of fog in the morning. Partly sunny. Warm with Highs in the upper 80s. Light and variable Winds. Heat index Values up to 100.

Tonight 7 Aug Knox

Partly cloudy. Areas of fog. Lows in the upper 60s. Light and variable Winds.

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  • Temperature Real-Time

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

    68 °F

  • Highest 4 August, 2026

    82 °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

    54.8 °F
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