Isle Au Haut - Old Cove Weather Forecast

    • 64
    • 69

    Becoming Sunny

    • 60
    • 77

    Chance Rain Showers

    • 60
    • 75

    Mostly Sunny

    • 59
    • 72

    Rain Showers Likely

    • 60
    • 74

    Partly Sunny

    • 60
    • 73

    Mostly Cloudy

Today 15 Jul Knox

Partly sunny. Warm with Highs in the mid 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Jul Knox

Mostly cloudy. Near steady temperature in the lower 70s. Light and variable Winds.

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Isle Au Haut - Old Cove Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 12 July, 2026

    54 °F

  • Average July

    71.4 °F

  • Highest 2 July, 2026

    91.9 °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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