Grandy Lake Weather Forecast

    • 50
    • 68

    Decreasing Clouds

    • 53
    • 68

    Partly Sunny

    • 53
    • 67

    Mostly Cloudy

    • 50
    • 67

    Partly Sunny

    • 52
    • 70

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

Today 8 Jul Foothills and Valleys of the North Cascades

Partly sunny. Highs in the upper 60s to mid 70s. South wind to 10 Mph becoming west in the afternoon.

Tonight 8 Jul Foothills and Valleys of the North Cascades

Partly cloudy. Lows near 50. Northwest wind around 10 Mph in the evening becoming light.

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Grandy Lake Temperature Statistics

July Temperature

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

  • Lowest 2 July, 2026

    46.4 °F

  • Average July

    58.6 °F

  • Highest 3 July, 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

    59.4 °F
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