Isle Au Haut - Old Cove Weather Forecast

    • 58
    • 63

    Rain Showers

    • 61
    • 72

    Partly Sunny

    • 63
    • 73

    Chance Rain Showers

    • 64
    • 80

    Mostly Sunny

    • 61
    • 76

    Slight Chance Rain Showers

    • 59
    • 70

    Partly Sunny

    • 58
    • 69

    Mostly Cloudy

Today 30 Jun Knox

Partly sunny. Near steady temperature in the upper 70s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 30 Jun Knox

Partly cloudy in the Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Patchy fog. Lows around 60. South Winds around 10 Mph in the Evening, becoming light and variable. Chance of rain 70 percent.

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Isle Au Haut - Old Cove Temperature Statistics

June Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 2 June, 2026

    37.9 °F

  • Average June

    61 °F

  • Highest 9 June, 2026

    81 °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

    47.5 °F

  • Average High 2021–2026

    54.7 °F
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