Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 72

    Decreasing Clouds

    • 59
    • 71

    Mostly Sunny

    • 62
    • 66

    Rain Showers

    • 61
    • 68

    Rain Showers Likely

    • 59
    • 72

    Partly Sunny

    • 59
    • 71

    Mostly Sunny

Today 20 Aug Knox

Areas of fog this morning. Partly sunny. Highs around 80. Light and variable Winds.

Tonight 20 Aug Knox

Cloudy in the Evening, then becoming partly cloudy. Lows in the upper 50s. Light and variable Winds.

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  • 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

    68.9 °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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