Isle Au Haut - Moores Harbor Weather Forecast

    • 55
    • 70

    Chance Rain Showers

    • 54
    • 71

    Chance Rain Showers

    • 54
    • 72

    Mostly Sunny

    • 55
    • 72

    Mostly Sunny

    • 56
    • 72

    Partly Sunny

    • 55
    • 72

    Partly Sunny

Today 13 Sep Knox

Partly sunny. Highs around 70. Light and variable Winds, becoming south around 10 Mph in the afternoon.

Tonight 13 Sep Knox

Partly cloudy. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Au Haut - Moores Harbor Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (22.4 miles)

  • Lowest 10 September, 2025

    43 °F

  • Average September

    60.3 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    55.3 °F
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