Mirror Lake Weather Forecast

    • 53
    • 75

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 55
    • 76

    Sunny

    • 58
    • 83

    Mostly Sunny

    • 57
    • 83

    Partly Sunny

Today 18 Jun Foothills and Valleys of the North Cascades

Sunny. Highs in the mid 70s to lower 80s. Light wind becoming northwest around 10 Mph in the afternoon.

Tonight 18 Jun Foothills and Valleys of the North Cascades

Mostly clear. Lows in the lower to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

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Mirror Lake Temperature Statistics

June Temperature

Burlington/Mount Vernon, Skagit Regional Airport (16.2 miles)

  • Lowest 1 June, 2026

    42.8 °F

  • Average June

    59.1 °F

  • Highest 14 June, 2026

    82.4 °F

Climate (2021–2026)

Burlington/Mount Vernon, Skagit Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.5 °F
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