Crater Lake Weather Forecast

    • 49
    • 54

    Breezy

    • 53
    • 65

    Breezy

    • 49
    • 62

    Mostly Sunny

    • 51
    • 60

    Mostly Sunny

    • 48
    • 63

    Partly Sunny

    • 46
    • 54

    Chance Rain

    • 44
    • 47

    Chance Rain

Today 15 Sep Cascades of Whatcom and Skagit Counties

Sunny. Freezing level near 13000 feet.

Tonight 15 Sep Cascades of Whatcom and Skagit Counties

Mostly clear. Freezing level near 14500 feet.

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Crater Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (41 miles)

  • Lowest 9 September, 2025

    51.8 °F

  • Average September

    63.4 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Arlington Municipal Airport (41 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.7 °F
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