Semisopochnoi Island Weather Forecast
- 42
- 51
Rain
- 39
- 45
Chance Rain Showers
- 40
- 45
Chance Rain Showers
- 39
- 43
Rain
- 38
- 43
Rain
- 37
- 42
Rain/Snow
- 38
- 42
Rain
Today 7 Oct Shemya and Attu Islands
Mostly cloudy. A chance of rain and a slight chance of snow. Lows in the upper 30s. Highs in the mid 40s.
Tonight 7 Oct Shemya and Attu Islands
Mostly clear in the Evening, then numerous Showers after midnight. Lows in the lower 40s. West wind 45 to 60 Mph. Gusts to 90 Mph decreasing to 70 Mph after midnight.
Semisopochnoi Island Temperature Statistics
October Temperature
Shemya, Eareckson AFB (236.7 miles)
Lowest 5 October, 2026
44.6 °FAverage October
48.8 °FHighest 5 October, 2026
53.4 °F
Climate (2021–2026)
Shemya, Eareckson AFB (236.7 miles)
Average Low 2021–2026
38.5 °FAverage 2021–2026
41.1 °FAverage High 2021–2026
43.7 °F