Brother Islands Weather Forecast

    • 31
    • 39

    Chance Rain/Snow

    • 37
    • 40

    Slight Chance Rain/Snow

    • 39
    • 42

    Rain Likely

    • 39
    • 44

    Rain Likely

    • 37
    • 43

    Rain Likely

    • 35
    • 41

    Rain Likely

Today 25 Oct Chignik

Mostly sunny. A slight chance of snow Showers in the Morning, then a slight chance of rain Showers and snow Showers in the afternoon. Highs in the mid 30s. Northwest wind 10 to 20 Mph.

Tonight 25 Oct Chignik

Partly cloudy with a slight chance of rain Showers and snow Showers. Lows in the mid 20s to lower 30s. Variable wind 10 Mph in the evening becoming light.

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Brother Islands Temperature Statistics

October Temperature

Port Heiden, Port Heiden Airport (70.8 miles)

  • Lowest 18 October, 2025

    30 °F

  • Average October

    45.8 °F

  • Highest 7 October, 2025

    63 °F

Climate (2020–Present)

Port Heiden, Port Heiden Airport (70.8 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    38.6 °F

  • Average High 2020–2025

    43.6 °F
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