Sumner Island Weather Forecast

    • 48
    • 57

    Rain Showers

    • 49
    • 67

    Mostly Cloudy

    • 48
    • 67

    Mostly Sunny

    • 47
    • 64

    Partly Sunny

    • 46
    • 62

    Mostly Cloudy

    • 46
    • 59

    Chance Rain Showers

    • 46
    • 61

    Chance Rain Showers

Today 25 Jun Western Kupreanof and Kuiu Island

Rain Showers likely early in the Morning, then chance of rain Showers in the morning. Rain Showers in the afternoon. Highs in the mid 50s. Light Winds.

Tonight 25 Jun Western Kupreanof and Kuiu Island

Mostly cloudy. Chance of rain Showers in the evening. Lows in the upper 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Island Temperature Statistics

June Temperature

Kake - Kake Airport (38.5 miles)

  • Lowest 1 June, 2026

    37 °F

  • Average June

    53.1 °F

  • Highest 20 June, 2026

    70 °F

Climate (2021–2026)

Kake - Kake Airport (38.5 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    43.9 °F

  • Average High 2021–2026

    48.7 °F
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