Harbor Island Weather Forecast

    • 55
    • 57

    Rain

    • 53
    • 57

    Chance Rain

    • 54
    • 54

    Rain

    • 52
    • 57

    Chance Rain Showers

    • 52
    • 57

    Chance Rain Showers

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    Chance Rain Showers

Today 4 Sep Southern Kenai Mtns

Partly sunny with a chance of rain. Highs in the lower 60s. Light Winds becoming variable 10 Mph in the afternoon.

Tonight 4 Sep Southern Kenai Mtns

Rain. Lows in the lower 50s. South wind 15 Mph.

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Harbor Island Temperature Statistics

September Temperature

Seward (31.7 miles)

  • Lowest 1 September, 2026

    46.9 °F

  • Average September

    55.9 °F

  • Highest 1 September, 2026

    66 °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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