Isle Au Haut - Merchants Cove Weather Forecast

    • 37
    • 40

    Increasing Clouds

    • 37
    • 45

    Mostly Cloudy

    • 39
    • 44

    Chance Rain

    • 30
    • 49

    Chance Rain/Snow

    • 31
    • 38

    Chance Snow

    • 33
    • 36

    Chance Snow

Today 29 Mar Knox

Sunny in the Morning, then becoming partly sunny. Highs in the lower 40s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 29 Mar Knox

Mostly clear in the Evening, then becoming mostly cloudy. Lows around 30. Southwest Winds around 10 Mph.

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Isle Au Haut - Merchants Cove Temperature Statistics

March Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 2 March, 2026

    3 °F
  • Average March

    34.3 °F
  • Highest 10 March, 2026

    57 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    39.6 °F
  • Average 2021–2026

    47.7 °F
  • Average High 2021–2026

    54.9 °F
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