Semisopochnoi Island Weather Forecast

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    Windy

    • 37
    • 47

    Rain

    • 36
    • 41

    Chance Rain

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    • 41

    Chance Rain

    • 40
    • 45

    Rain

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    • 44

    Rain Likely

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    Rain Likely

Today 21 Oct Shemya and Attu Islands

Rain. Lows in the upper 30s. Highs in the mid 40s.

Tonight 21 Oct Shemya and Attu Islands

Rain. Lows in the upper 30s. Southeast wind 25 to 40 Mph with Gusts to 55 Mph increasing to 40 to 55 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Semisopochnoi Island Temperature Statistics

October Temperature

Shemya, Eareckson AFB (236.7 miles)

  • Lowest 13 October, 2026

    39.4 °F

  • Average October

    45.9 °F

  • Highest 5 October, 2026

    53.4 °F

Climate (2021–2026)

Shemya, Eareckson AFB (236.7 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    43.7 °F
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