Semisopochnoi Island Weather Forecast
- 44
- 51
Rain
- 44
- 49
Rain Showers Likely
- 44
- 49
Chance Rain
- 44
- 49
Chance Rain
- 44
- 49
Chance Rain
- 44
- 50
Partly Sunny
Today 16 Sep Western Aleutians
Partly sunny. A chance of Showers in the Morning, then a chance of rain in the afternoon. Highs in the mid 50s. West wind 25 to 40 Mph.
Tonight 16 Sep Western Aleutians
A chance of rain in the Evening, then rain likely after midnight. Lows in the mid 40s. West wind 15 to 30 Mph.
Semisopochnoi Island Temperature Statistics
September Temperature
Shemya, Eareckson AFB (236.7 miles)
Lowest 6 September, 2025
47.1 °FAverage September
52.4 °FHighest 13 September, 2025
57 °F
Climate (2020–Present)
Shemya, Eareckson AFB (236.7 miles)
Average Low 2020–2025
38.3 °FAverage 2020–2025
40.9 °FAverage High 2020–2025
43.5 °F