Portage Bay Weather Forecast

    • 11
    • 22

    Mostly Cloudy

    • 11
    • 17

    Mostly Cloudy

    • 9
    • 17

    Mostly Cloudy

    • 3
    • 15

    Partly Sunny

    • 5
    • 11

    Mostly Cloudy

    • 8
    • 16

    Chance Snow

Today 18 Dec Petersburg Borough

Mostly cloudy. Chance of snow Showers early in the morning. Highs in the mid 20s. Northeast Winds around 10 Mph.

Tonight 18 Dec Petersburg Borough

Mostly cloudy. Lows around 11. Light Winds.

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Portage Bay Temperature Statistics

December Temperature

Petersburg (19.3 miles)

  • Lowest 13 December, 2025

    3.9 °F

  • Average December

    29.6 °F

  • Highest 1 December, 2025

    45 °F

Climate (2020–Present)

Petersburg (19.3 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    43.5 °F

  • Average High 2020–2025

    48.9 °F
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