Isle Au Haut - Old Cove Weather Forecast

    • 32
    • 40

    Increasing Clouds

    • 13
    • 41

    Snow Showers

    • 24
    • 31

    Partly Sunny

    • 28
    • 38

    Chance Rain/Snow

    • 19
    • 36

    Partly Sunny

    • 18
    • 28

    Partly Sunny

Today 3 Dec Knox

Partly sunny. Highs in the mid 30s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this morning.

Tonight 3 Dec Knox

Mostly cloudy. Lows in the mid 20s. Light and variable Winds, becoming southwest around 10 Mph after midnight.

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Isle Au Haut - Old Cove Temperature Statistics

December Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 1 December, 2025

    23 °F

  • Average December

    –

  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (24.2 miles)

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    55.2 °F
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