Guemes Island Weather Forecast

    • 49
    • 66

    Mostly Cloudy

    • 51
    • 66

    Mostly Cloudy

    • 47
    • 64

    Rain Likely

    • 48
    • 64

    Partly Sunny

    • 49
    • 66

    Partly Sunny

    • 49
    • 66

    Mostly Cloudy

Today 23 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s. South wind to 10 Mph becoming west around 10 Mph in the afternoon.

Tonight 23 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. Southwest wind 10 to 15 Mph becoming south after midnight. Gusts to 25 Mph.

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Guemes Island Temperature Statistics

May Temperature

Burlington/Mount Vernon, Skagit Regional Airport (9.9 miles)

  • Lowest 16 May, 2026

    42.8 °F

  • Average May

    55.6 °F

  • Highest 4 May, 2026

    78.8 °F

Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.6 °F
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