Isle Au Haut - Old Cove Weather Forecast

    • 63
    • 71

    Areas Fog

    • 63
    • 74

    Rain Showers

    • 65
    • 74

    Partly Sunny

    • 64
    • 74

    Slight Chance Thunderstorms

    • 63
    • 75

    Partly Sunny

    • 62
    • 74

    Partly Sunny

    • 61
    • 72

    Chance Rain Showers

Today 7 Aug Knox

Partly sunny with a slight chance of Showers with isolated Thunderstorms. Warm with Highs in the upper 80s. Light and variable Winds. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 7 Aug Knox

Partly cloudy with a slight chance of Showers with isolated Thunderstorms this Evening, then mostly cloudy after midnight. Patchy fog this Evening, then Areas of fog after midnight. Lows in the mid 60s. Light and variable Winds. Chance of rain 20 percent. Heat index Values in the mid 90s early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Au Haut - Old Cove Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    68.4 °F

  • Highest 4 August, 2026

    82 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (24.2 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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