Costigan Weather Forecast

    • 12
    • 24

    Decreasing Clouds

    • 16
    • 28

    Partly Sunny

    • 11
    • 27

    Chance Snow Showers

    • 8
    • 20

    Partly Sunny

    • 10
    • 26

    Mostly Cloudy

    • 22
    • 34

    Slight Chance Snow

Today 12 Dec Southern Penobscot

Mostly sunny. Colder with Highs in the lower 20s. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 12 Dec Southern Penobscot

Mostly clear. Cold with Lows around 12. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Costigan Temperature Statistics

December Temperature

Bangor, Bangor International Airport (16.8 miles)

  • Lowest 9 December, 2025

    -11 °F

  • Average December

    17.6 °F

  • Highest 1 December, 2025

    37.9 °F

Climate (2020–Present)

Bangor, Bangor International Airport (16.8 miles)

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  • Average Low 2020–2025

    37.9 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57 °F
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