Grandy Lake Weather Forecast

    • 50
    • 68

    Decreasing Clouds

    • 55
    • 73

    Mostly Sunny

    • 57
    • 81

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 55
    • 66

    Mostly Cloudy

    • 55
    • 73

    Partly Sunny

    • 60
    • 82

    Mostly Sunny

Today 5 Jul Foothills and Valleys of the North Cascades

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

Tonight 5 Jul Foothills and Valleys of the North Cascades

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

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  • Temperature Real-Time

Grandy Lake Temperature Statistics

July Temperature

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

  • Lowest 1 July, 2025

    50 °F

  • Average July

    60.5 °F

  • Highest 1 July, 2025

    75.2 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.8 °F
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