Granite Island Weather Forecast

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    • 55

    Rain Showers

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    • 54

    Chance Rain Showers

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    • 54

    Rain Showers Likely

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    • 52

    Rain Showers

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    • 52

    Rain Showers

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    • 53

    Rain Showers

Today 21 Sep Southern Kenai Mtns

Showers. Highs around 50. Light Winds becoming variable 10 Mph with Gusts to 20 Mph in the afternoon.

Tonight 21 Sep Southern Kenai Mtns

Mostly cloudy with a chance of rain Showers. Patchy fog after midnight. Lows in the mid 30s. Southeast wind 15 Mph. Gusts to 25 Mph in the evening.

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Granite Island Temperature Statistics

September Temperature

Seward (34.2 miles)

  • Lowest 4 September, 2026

    39 °F

  • Average September

    53.9 °F

  • Highest 13 September, 2026

    68 °F

Climate (2021–2026)

Seward (34.2 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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