Islesboro Island - Billys Shore Weather Forecast

    • 26
    • 38

    Patchy Freezing Fog

    • 36
    • 42

    Rain Likely

    • 31
    • 42

    Rain/Snow Likely

    • 26
    • 37

    Chance Rain

    • 24
    • 32

    Partly Sunny

    • 30
    • 37

    Mostly Cloudy

Today 8 Jan Coastal Waldo

Partly sunny. Highs in the upper 30s. Northwest Winds around 10 Mph.

Tonight 8 Jan Coastal Waldo

Mostly clear in the Evening, then becoming partly cloudy. Patchy freezing fog. Lows in the lower 20s. Light and variable Winds.

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Islesboro Island - Billys Shore Temperature Statistics

January Temperature

Rockland, Knox County Regional Airport (20.5 miles)

  • Lowest 5 January, 2026

    6.1 °F

  • Average January

    15.9 °F

  • Highest 1 January, 2026

    28 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (20.5 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    55 °F
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