Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 70

    Rain Showers

    • 60
    • 70

    Mostly Sunny

    • 60
    • 72

    Chance Rain Showers

    • 58
    • 70

    Mostly Sunny

    • 58
    • 67

    Chance Rain Showers

    • 59
    • 67

    Chance Rain Showers

    • 59
    • 69

    Chance Rain Showers

Today 28 Aug Knox

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 70s. South Winds around 10 Mph. Chance of rain 50 percent.

Tonight 28 Aug Knox

Mostly cloudy late this Evening, then becoming partly cloudy. Isolated Showers late this evening. Patchy fog late this evening. Lows in the mid 50s. Light and variable Winds. Chance of rain 20 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 16 August, 2026

    54 °F

  • Average August

    68.2 °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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