Isle Au Haut - Old Cove Weather Forecast

    • 58
    • 69

    Rain Showers

    • 57
    • 67

    Partly Sunny

    • 57
    • 70

    Mostly Sunny

    • 57
    • 69

    Partly Sunny

    • 59
    • 68

    Partly Sunny

    • 60
    • 69

    Chance Rain Showers

Today 22 Jul Knox

Mostly cloudy. Patchy fog this morning. A chance of Showers this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds this afternoon. Visibility one quarter mile or less at Times this morning. Highs around 80. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 22 Jul Knox

Partly cloudy. Less humid with Lows in the upper 50s. Southwest Winds around 10 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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Isle Au Haut - Old Cove Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 17 July, 2026

    52 °F

  • Average July

    70.1 °F

  • Highest 2 July, 2026

    91.9 °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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