Bar Harbor Weather Forecast

    • 50
    • 63

    Mostly Sunny

    • 51
    • 62

    Chance Rain

    • 48
    • 65

    Partly Sunny

    • 48
    • 62

    Partly Sunny

    • 48
    • 62

    Partly Sunny

    • 50
    • 63

    Chance Rain Showers

Today 19 Sep Coastal Hancock

Sunny. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.

Tonight 19 Sep Coastal Hancock

Clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Southwest Winds around 5 Mph, becoming southeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Bar Harbor Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (8.7 miles)

  • Lowest 9 September, 2026

    44.1 °F

  • Average September

    60.5 °F

  • Highest 10 September, 2026

    80.1 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (8.7 miles)

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

  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
Get WillyWeather+ to remove ads