Guemes Island Weather Forecast

    • 44
    • 55

    Rain Showers

    • 47
    • 59

    Rain Likely

    • 47
    • 62

    Mostly Cloudy

    • 48
    • 63

    Mostly Cloudy

    • 48
    • 63

    Partly Sunny

    • 49
    • 62

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

Today 15 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Showers through the day. A slight chance of Thunderstorms in the afternoon. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Highs in the 50s. South wind 10 to 20 Mph.

Tonight 15 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Showers likely and a slight chance of Thunderstorms. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Lows in the upper 30s to mid 40s. Southeast wind to 10 Mph becoming south after midnight.

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Guemes Island Temperature Statistics

May Temperature

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

  • Lowest 11 May, 2026

    44.6 °F

  • Average May

    57.2 °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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