Seal Harbor Weather Forecast

    • 61
    • 76

    Dense Fog

    • 59
    • 76

    Partly Sunny

    • 60
    • 79

    Mostly Sunny

    • 63
    • 77

    Chance Rain Showers

    • 61
    • 76

    Slight Chance Thunderstorms

    • 58
    • 80

    Partly Sunny

Today 24 Aug Knox

Mostly cloudy with a slight chance of Showers this Morning, then mostly sunny this afternoon. Areas of fog. Visibility one quarter mile or less at Times. Highs in the upper 70s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph this afternoon. Chance of rain 20 percent.

Tonight 24 Aug Knox

Areas of fog in the evening. Partly cloudy. Visibility one quarter mile or less at Times in the evening. Lows in the upper 50s. Light and variable Winds.

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Seal Harbor Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (5 miles)

  • Lowest 16 August, 2026

    54 °F

  • Average August

    68.8 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (5 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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