Katmai National Park Weather Forecast

    • 42
    • 49

    Chance Rain Showers

    • 44
    • 52

    Rain Likely

    • 43
    • 52

    Rain Likely

    • 43
    • 51

    Chance Rain

    • 41
    • 49

    Chance Rain

    • 38
    • 47

    Rain Likely

    • 35
    • 45

    Rain Likely

Today 16 Sep Lake Iliamna / Nila Vena / Nanvarpak

Mostly cloudy with a chance of rain Showers. Highs in the mid 50s. Light Winds.

Tonight 16 Sep Lake Iliamna / Nila Vena / Nanvarpak

Mostly cloudy with a chance of rain Showers. Lows in the mid 40s. Light Winds.

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Katmai National Park Temperature Statistics

September Temperature

Igiugig (32.3 miles)

  • Lowest 5 September, 2025

    43 °F

  • Average September

    54.3 °F

  • Highest 3 September, 2025

    66.9 °F

Climate (2020–Present)

Igiugig (32.3 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    36.2 °F

  • Average High 2020–2025

    42.5 °F
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