Union River Entrance Weather Forecast

    • 52
    • 69

    Patchy Fog

    • 56
    • 70

    Mostly Cloudy

    • 42
    • 68

    Mostly Sunny

    • 42
    • 61

    Sunny

    • 52
    • 64

    Mostly Sunny

    • 54
    • 67

    Partly Sunny

Today 17 Sep Coastal Hancock

Patchy fog this morning. Partly sunny. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 17 Sep Coastal Hancock

Mostly cloudy. Patchy fog. Lows in the lower 50s. Southwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Union River Entrance Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (3.7 miles)

  • Lowest 13 September, 2025

    43 °F

  • Average September

    60.4 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (3.7 miles)

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

  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    54.8 °F
Get WillyWeather+ to remove ads