Isle Au Haut - Old Cove Weather Forecast

    • 62
    • 70

    Areas Fog

    • 63
    • 71

    Chance Rain Showers

    • 60
    • 69

    Chance Rain Showers

    • 59
    • 68

    Mostly Sunny

    • 60
    • 70

    Partly Sunny

    • 58
    • 70

    Mostly Cloudy

    • 58
    • 67

    Mostly Cloudy

Today 26 Aug Knox

Mostly sunny. Highs in the lower 80s. Southwest Winds around 10 Mph.

Tonight 26 Aug Knox

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows around 60. 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

    68.5 °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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