Isle Au Haut - Old Cove Weather Forecast

    • 60
    • 71

    Areas Fog

    • 60
    • 73

    Rain Showers

    • 58
    • 70

    Mostly Sunny

    • 59
    • 67

    Rain Showers Likely

    • 60
    • 70

    Chance Rain Showers

    • 59
    • 72

    Partly Sunny

Today 19 Aug Knox

Areas of fog this morning. Partly sunny. Highs around 80. Light and variable Winds, becoming south around 10 Mph this afternoon.

Tonight 19 Aug Knox

Partly cloudy. Patchy fog in the Evening, then Areas of fog after midnight. Humid with 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

    69.1 °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

    54.9 °F
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