Kupreanof Weather Forecast

    • 51
    • 61

    Chance Rain

    • 51
    • 62

    Chance Rain

    • 52
    • 65

    Partly Sunny

    • 54
    • 66

    Chance Rain

    • 54
    • 61

    Rain

    • 54
    • 60

    Rain

Today 4 Aug Petersburg Borough

Mostly cloudy. Chance of rain Showers in the Morning, then chance of rain in the afternoon. Highs 63 to 69. East Winds around 10 Mph.

Tonight 4 Aug Petersburg Borough

Mostly cloudy. Chance of rain. Lows in the lower 50s. East Winds around 10 Mph.

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Kupreanof Temperature Statistics

August Temperature

Petersburg (1.2 miles)

  • Lowest 1 August, 2025

    54 °F

  • Average August

    58.1 °F

  • Highest 1 August, 2025

    62.1 °F

Climate (2020–Present)

Petersburg (1.2 miles)

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  • Average Low 2020–2025

    38.1 °F

  • Average 2020–2025

    43.4 °F

  • Average High 2020–2025

    48.8 °F
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