Sourdough Lake Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 46
    • 64

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

    • 40
    • 60

    Partly Sunny

    • 39
    • 57

    Partly Sunny

    • 38
    • 54

    Mostly Cloudy

    • 38
    • 54

    Slight Chance Rain

Today 3 May Cascades of Whatcom and Skagit Counties

Sunny. Freezing level near 11000 feet.

Tonight 3 May Cascades of Whatcom and Skagit Counties

Mostly clear. Freezing level near 11500 feet.

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Sourdough Lake Temperature Statistics

May Temperature

Burlington/Mount Vernon, Skagit Regional Airport (62.1 miles)

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  • Average May

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Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (62.1 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.6 °F
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