Harbor Island Weather Forecast

    • 53
    • 57

    Partly Sunny

    • 53
    • 60

    Partly Sunny

    • 53
    • 59

    Mostly Cloudy

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 60

    Mostly Cloudy

    • 53
    • 59

    Chance Rain

Today 6 Aug Southern Kenai Mtns

Mostly cloudy with a chance of rain in the Morning, then partly cloudy in the afternoon. Highs around 60. Light Winds.

Tonight 6 Aug Southern Kenai Mtns

Mostly clear. Lows in the upper 40s. Light Winds becoming variable 10 Mph after midnight.

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Harbor Island Temperature Statistics

August Temperature

Seward (31.7 miles)

  • Lowest 1 August, 2026

    44.1 °F

  • Average August

    55.1 °F

  • Highest 1 August, 2026

    63 °F

Climate (2021–2026)

Seward (31.7 miles)

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  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    40.2 °F

  • Average High 2021–2026

    45.6 °F
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