Isle Au Haut - Old Cove Weather Forecast

    • 54
    • 64

    Partly Sunny

    • 57
    • 71

    Mostly Sunny

    • 55
    • 68

    Partly Sunny

    • 59
    • 65

    Rain Showers Likely

    • 55
    • 71

    Partly Sunny

    • 53
    • 64

    Mostly Sunny

Today 6 Sep Knox

Partly sunny. Highs in the lower 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 6 Sep Knox

Partly cloudy. Lows around 50. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Au Haut - Old Cove Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (24.2 miles)

  • Lowest 1 September, 2026

    48.9 °F

  • Average September

    60.3 °F

  • Highest 1 September, 2026

    69.1 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (24.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
Get WillyWeather+ to remove ads