Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 75

    Rain Showers

    • 59
    • 76

    Mostly Sunny

    • 59
    • 74

    Mostly Sunny

    • 60
    • 72

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 61
    • 74

    Partly Sunny

Today 13 Aug Knox

Partly sunny. A chance of Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s. Light and variable Winds. Chance of rain 50 percent.

Tonight 13 Aug Knox

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 50s. Light and variable Winds. Chance of rain 50 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

    70.7 °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

    54.9 °F
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