Brother Islands Weather Forecast

    • 54
    • 54

    Rain

    • 50
    • 55

    Chance Rain

    • 50
    • 53

    Chance Rain

    • 49
    • 52

    Chance Rain Showers

    • 48
    • 53

    Rain Showers Likely

    • 47
    • 52

    Rain Showers Likely

Today 14 Sep Chignik and Perryville

A slight chance of rain in the Morning, then rain likely in the afternoon. Highs in the mid 50s. South wind 10 to 20 Mph.

Tonight 14 Sep Chignik and Perryville

A chance of rain in the Evening, then rain after midnight. Lows in the lower 50s. South wind 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brother Islands Temperature Statistics

September Temperature

Port Heiden, Port Heiden Airport (70.8 miles)

  • Lowest 11 September, 2026

    41 °F

  • Average September

    54.2 °F

  • Highest 3 September, 2026

    70 °F

Climate (2021–2026)

Port Heiden, Port Heiden Airport (70.8 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    38.4 °F

  • Average High 2021–2026

    43.5 °F
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