Grandy Lake Weather Forecast

    • 60
    • 82

    Smoke

    • 61
    • 82

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

    • 55
    • 72

    Mostly Sunny

    • 56
    • 73

    Mostly Sunny

Today 5 Aug Foothills and Valleys of the North Cascades

Sunny. Patchy smoke in the Morning, then Areas of smoke late in the morning. Patchy smoke in the afternoon. Highs in the mid 80s to lower 90s. Light wind.

Tonight 5 Aug Foothills and Valleys of the North Cascades

Mostly clear. Patchy smoke. Lows in the mid 50s to lower 60s. Light wind.

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Grandy Lake Temperature Statistics

August Temperature

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

  • Lowest 2 August, 2026

    51.8 °F

  • Average August

    60.6 °F

  • Highest 2 August, 2026

    69.8 °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

    51.3 °F

  • Average High 2021–2026

    59.3 °F
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