Cranberry Island Weather Forecast

    • 55
    • 65

    Decreasing Clouds

    • 59
    • 71

    Mostly Sunny

    • 56
    • 69

    Partly Sunny

    • 62
    • 65

    Rain Showers Likely

    • 56
    • 71

    Partly Sunny

    • 53
    • 62

    Mostly Sunny

Today 6 Sep Knox

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

Tonight 6 Sep Knox

Partly cloudy. Lows in the lower 50s. North Winds around 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cranberry Island Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (15.5 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 (15.5 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