Semisopochnoi Island Weather Forecast

    • 50
    • 57

    Slight Chance Rain

    • 50
    • 55

    Rain Showers

    • 48
    • 56

    Rain Showers

    • 47
    • 54

    Chance Rain

    • 47
    • 54

    Windy

    • 47
    • 54

    Breezy

Today 22 Aug Western Aleutians

Areas of fog in the morning. A chance of rain in the Morning, then widespread Showers in the afternoon. Highs in the upper 50s. South wind 10 to 25 Mph.

Tonight 22 Aug Western Aleutians

Rain in the Evening, then scattered Showers after midnight. Lows in the lower 50s. South wind 10 to 25 Mph.

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Semisopochnoi Island Temperature Statistics

August Temperature

Shemya, Eareckson AFB (236.7 miles)

  • Lowest 12 August, 2025

    48.2 °F

  • Average August

    52.9 °F

  • Highest 14 August, 2025

    60.8 °F

Climate (2020–Present)

Shemya, Eareckson AFB (236.7 miles)

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  • Average Low 2020–2025

    38.3 °F

  • Average 2020–2025

    40.8 °F

  • Average High 2020–2025

    43.4 °F
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