Mitkof Island Weather Forecast

    • 49
    • 58

    Rain

    • 49
    • 68

    Rain

    • 46
    • 60

    Rain

    • 48
    • 59

    Rain

    • 49
    • 58

    Rain

    • 47
    • 60

    Rain

    • 44
    • 58

    Rain

Today 15 Sep Petersburg Borough

Rain in the Morning, then chance of rain in the afternoon. Highs 56 to 62. Southeast Winds 10 to 20 Mph.

Tonight 15 Sep Petersburg Borough

Chance of rain early in the Evening, then rain. Rain may be heavy at Times. Lows around 50. Southeast Winds 10 to 20 Mph.

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Mitkof Island Temperature Statistics

September Temperature

Petersburg (11.8 miles)

  • Lowest 13 September, 2025

    44.1 °F

  • Average September

    54.5 °F

  • Highest 2 September, 2025

    66.9 °F

Climate (2020–Present)

Petersburg (11.8 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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