Merchant Island Weather Forecast

    • 52
    • 59

    Chance Rain Showers

    • 54
    • 63

    Rain Showers

    • 55
    • 65

    Rain Showers Likely

    • 55
    • 65

    Partly Sunny

    • 54
    • 63

    Chance Rain Showers

    • 55
    • 63

    Chance Rain Showers

Today 21 Jun Knox

Partly sunny. Scattered Thunderstorms with a chance of Showers in the afternoon. Highs in the mid 70s. Light and variable Winds, becoming southwest around 10 Mph in the afternoon. Chance of rain 50 percent.

Tonight 21 Jun Knox

Partly cloudy. A chance of Showers in the evening. Lows in the mid 50s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merchant Island Temperature Statistics

June Temperature

Rockland, Knox County Regional Airport (22.4 miles)

  • Lowest 2 June, 2026

    37.9 °F

  • Average June

    59.7 °F

  • Highest 9 June, 2026

    81 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (22.4 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    54.8 °F
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