Lake Shannon Weather Forecast

    • 54
    • 75

    Decreasing Clouds

    • 55
    • 75

    Mostly Cloudy

    • 57
    • 78

    Partly Sunny

    • 58
    • 83

    Sunny

    • 56
    • 84

    Sunny

    • 55
    • 77

    Mostly Sunny

Today 30 Apr Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the upper 60s to mid 70s. Light wind.

Tonight 30 Apr Foothills and Valleys of the North Cascades

Partly cloudy. Lows near 50. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Shannon Temperature Statistics

April Temperature

Burlington/Mount Vernon, Skagit Regional Airport (32.9 miles)

  • Lowest 8 April, 2026

    35.6 °F

  • Average April

    49.1 °F

  • Highest 6 April, 2026

    68 °F

Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (32.9 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.6 °F
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