Penobscot River - Interstate 395 Bridge Weather Forecast

    • 18
    • 29

    Increasing Clouds

    • 20
    • 37

    Mostly Cloudy

    • 35
    • 44

    Rain

    • 17
    • 52

    Rain Likely

    • 18
    • 28

    Chance Snow

    • 12
    • 35

    Partly Sunny

Today 16 Dec Southern Penobscot

Partly sunny this Morning, then clearing. Highs in the upper 20s. Southwest Winds around 5 Mph.

Tonight 16 Dec Southern Penobscot

Mostly cloudy. Not as cold with Lows around 17. Temperature rising into the mid 20s after midnight. South Winds 5 to 10 Mph.

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Penobscot River - Interstate 395 Bridge Temperature Statistics

December Temperature

Bangor, Bangor International Airport (1.9 miles)

  • Lowest 9 December, 2025

    -11 °F

  • Average December

    19.7 °F

  • Highest 10 December, 2025

    39 °F

Climate (2020–Present)

Bangor, Bangor International Airport (1.9 miles)

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  • Average Low 2020–2025

    37.8 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57 °F
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