Jack Island Weather Forecast

    • 50
    • 59

    Decreasing Clouds

    • 50
    • 60

    Mostly Cloudy

    • 51
    • 57

    Chance Rain

    • 49
    • 55

    Chance Rain

    • 47
    • 57

    Mostly Sunny

    • 48
    • 59

    Mostly Sunny

    • 49
    • 60

    Partly Sunny

Today 19 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly sunny. Highs in the 60s to lower 70s. East wind to 10 Mph becoming northwest in the afternoon.

Tonight 19 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jack Island Temperature Statistics

April Temperature

Burlington/Mount Vernon, Skagit Regional Airport (11.2 miles)

  • Lowest 8 April, 2026

    35.6 °F

  • Average April

    48.4 °F

  • Highest 6 April, 2026

    68 °F

Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (11.2 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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