Merchant Island Weather Forecast

    • 44
    • 53

    Partly Sunny

    • 49
    • 56

    Rain

    • 46
    • 58

    Rain Showers

    • 40
    • 52

    Breezy

    • 40
    • 49

    Slight Chance Rain Showers

    • 44
    • 52

    Chance Rain Showers

Today 29 Oct Knox

Partly sunny. Highs in the mid 50s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 29 Oct Knox

Partly cloudy. Lows in the mid 30s. Light and variable Winds.

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Merchant Island Temperature Statistics

October Temperature

Rockland, Knox County Regional Airport (22.4 miles)

  • Lowest 10 October, 2025

    32 °F

  • Average October

    52.2 °F

  • Highest 6 October, 2025

    77 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    55.3 °F
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