Isle Au Haut - Old Cove Weather Forecast

    • 57
    • 68

    Increasing Clouds

    • 56
    • 66

    Chance Rain Showers

    • 58
    • 65

    Rain Showers Likely

    • 57
    • 67

    Chance Rain Showers

    • 56
    • 67

    Chance Rain Showers

    • 55
    • 67

    Partly Sunny

Today 31 Aug Knox

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

Tonight 31 Aug Knox

Mostly clear in the Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light and variable Winds.

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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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