Grandy Lake Weather Forecast

    • 57
    • 75

    Decreasing Clouds

    • 60
    • 79

    Mostly Sunny

    • 58
    • 81

    Chance Rain

    • 55
    • 67

    Chance Rain

    • 54
    • 69

    Partly Sunny

    • 56
    • 74

    Partly Sunny

Today 19 Aug Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the mid 70s to lower 80s. Light wind.

Tonight 19 Aug Foothills and Valleys of the North Cascades

Partly cloudy. Lows in the 50s. Light wind.

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Grandy Lake Temperature Statistics

August Temperature

Burlington/Mount Vernon, Skagit Regional Airport (28.6 miles)

  • Lowest 3 August, 2026

    50 °F

  • Average August

    62.3 °F

  • Highest 6 August, 2026

    82.4 °F

Climate (2021–2026)

Burlington/Mount Vernon, Skagit Regional Airport (28.6 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.3 °F
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