Semisopochnoi Island Weather Forecast

    • 39
    • 41

    Rain

    • 39
    • 42

    Rain

    • 36
    • 41

    Rain

    • 36
    • 42

    Rain Showers Likely

    • 35
    • 42

    Chance Rain

    • 33
    • 40

    Chance Rain

Today 19 Oct Western Aleutians

Rain. Highs in the mid 40s. Southeast wind 10 to 25 Mph increasing to east 30 to 45 Mph with Gusts to 60 Mph in the afternoon.

Tonight 19 Oct Western Aleutians

Rain likely. Lows around 40. Northeast wind 25 to 40 Mph.

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Semisopochnoi Island Temperature Statistics

October Temperature

Shemya, Eareckson AFB (236.7 miles)

  • Lowest 17 October, 2025

    36.3 °F

  • Average October

    47.2 °F

  • Highest 1 October, 2025

    55.8 °F

Climate (2020–Present)

Shemya, Eareckson AFB (236.7 miles)

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  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    41 °F

  • Average High 2020–2025

    43.6 °F
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