Semisopochnoi Island Weather Forecast

    • 49
    • 53

    Slight Chance Rain

    • 47
    • 55

    Rain

    • 44
    • 51

    Mostly Cloudy

    • 45
    • 50

    Chance Rain Showers

    • 46
    • 50

    Chance Rain Showers

    • 46
    • 50

    Chance Rain Showers

    • 47
    • 51

    Chance Rain Showers

Today 9 Sep Shemya and Attu Islands

Rain likely in the Morning, then rain in the afternoon. Patchy fog. Rain may be heavy at Times in the afternoon. Highs in the mid 50s. South wind 30 to 45 Mph with Gusts to 65 Mph.

Tonight 9 Sep Shemya and Attu Islands

Rain. Rain may be heavy at Times. Lows around 50. South wind 30 to 45 Mph with Gusts to 70 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Semisopochnoi Island Temperature Statistics

September Temperature

Shemya, Eareckson AFB (236.7 miles)

  • Lowest 4 September, 2026

    48.2 °F

  • Average September

    52.2 °F

  • Highest 1 September, 2026

    56.3 °F

Climate (2021–2026)

Shemya, Eareckson AFB (236.7 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    43.7 °F
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