Guemes Island - Guemes Weather Forecast

    • 52
    • 71

    Decreasing Clouds

    • 52
    • 71

    Partly Sunny

    • 53
    • 71

    Mostly Cloudy

    • 55
    • 74

    Partly Sunny

    • 55
    • 75

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

Today 18 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Sunny then becoming partly sunny late in the morning then becoming cloudy then becoming partly sunny late in the afternoon. Highs in the mid 60s to lower 70s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 18 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy. Lows in the lower to mid 50s. Southwest wind around 10 Mph becoming south to 10 Mph after midnight.

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Guemes Island - Guemes Temperature Statistics

July Temperature

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

  • Lowest 4 July, 2025

    46.4 °F

  • Average July

    63.5 °F

  • Highest 16 July, 2025

    87.8 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.8 °F
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