Isle Au Haut - Old Cove Weather Forecast

    • 63
    • 77

    Chance Rain Showers

    • 63
    • 78

    Partly Sunny

    • 61
    • 75

    Chance Rain Showers

    • 59
    • 73

    Chance Rain Showers

    • 59
    • 74

    Mostly Sunny

    • 58
    • 74

    Mostly Sunny

Today 10 Aug Knox

Partly sunny. Warm with Highs in the mid 80s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 10 Aug Knox

Mostly cloudy in the Evening, then becoming partly cloudy. A chance of Showers with a slight chance of Thunderstorms. Lows in the lower 60s. Light and variable Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • 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

    70.1 °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

    54.8 °F
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