Gravina Island Weather Forecast

    • 49
    • 58

    Chance Rain

    • 51
    • 58

    Rain Likely

    • 52
    • 58

    Rain Likely

    • 51
    • 62

    Slight Chance Rain

    • 52
    • 62

    Mostly Cloudy

    • 53
    • 59

    Rain Likely

    • 54
    • 60

    Rain Likely

Today 3 Aug Ketchikan Gateway Borough

Rain in the Morning, then rain likely in the afternoon. Rain may be heavy at Times in the morning. Highs in the lower 60s. Southeast Winds 10 to 15 Mph.

Tonight 3 Aug Ketchikan Gateway Borough

Mostly cloudy. Rain Showers likely early in the Evening, then chance of rain Showers. Lows in the mid 50s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gravina Island Temperature Statistics

August Temperature

Ketchikan, Ketchikan International Airport (2.5 miles)

  • Lowest 1 August, 2025

    50 °F

  • Average August

    59.5 °F

  • Highest 1 August, 2025

    66.2 °F

Climate (2020–Present)

Ketchikan, Ketchikan International Airport (2.5 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    51.9 °F
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