Isle Au Haut - Old Cove Weather Forecast

    • 46
    • 59

    Mostly Sunny

    • 46
    • 58

    Partly Sunny

    • 47
    • 56

    Rain

    • 49
    • 57

    Chance Rain Showers

    • 50
    • 64

    Slight Chance Rain Showers

    • 49
    • 64

    Chance Rain Showers

Today 22 May Knox

Mostly sunny. Highs in the upper 60s. West Winds around 10 Mph.

Tonight 22 May Knox

Mostly clear. Lows in the lower 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Au Haut - Old Cove Temperature Statistics

May Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 4 May, 2026

    32 °F

  • Average May

    52.9 °F

  • Highest 20 May, 2026

    86 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (24.2 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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