Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 69

    Partly Cloudy

    • 59
    • 72

    Rain Showers

    • 57
    • 69

    Mostly Sunny

    • 57
    • 67

    Chance Rain Showers

    • 58
    • 66

    Chance Rain Showers

    • 57
    • 68

    Chance Rain Showers

    • 56
    • 67

    Slight Chance Rain Showers

Today 29 Aug Knox

Sunny. Highs in the upper 70s. Light and variable Winds.

Tonight 29 Aug Knox

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds around 10 Mph this Evening, becoming light and variable.

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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

    68.1 °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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