Iceberg Weather Forecast

    • 42
    • 62

    Mostly Cloudy

    • 37
    • 49

    Mostly Cloudy

    • 39
    • 48

    Mostly Cloudy

    • 38
    • 50

    Rain Likely

    • 34
    • 41

    Rain/Snow Likely

    • 35
    • 42

    Mostly Cloudy

Today 21 Sep Cascades of Southern King County

Sunny until late afternoon then becoming partly sunny. Freezing level near 13000 feet. Afternoon pass Temperatures around 70. Light wind in the Passes.

Tonight 21 Sep Cascades of Southern King County

Partly cloudy in the evening then becoming mostly cloudy. Freezing level near 12500 feet. Light wind in the Passes.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Iceberg Temperature Statistics

September Temperature

Stampede Pass (15.5 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    50.8 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (15.5 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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