Lake Isabella Weather Forecast

    • 49
    • 66

    Sunny

    • 47
    • 61

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 48
    • 63

    Partly Sunny

    • 45
    • 57

    Chance Rain

Today 17 Sep Cascades of Snohomish and Northern King Counties

Sunny. Freezing level near 13000 feet. Afternoon pass Temperatures in the lower 70s. Light wind.

Tonight 17 Sep Cascades of Snohomish and Northern King Counties

Clear. Freezing level near 13000 feet. Lows in the mid 40s. Light wind.

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Lake Isabella Temperature Statistics

September Temperature

Stampede Pass (25.5 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    49.1 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (25.5 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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