Guemes Island Weather Forecast

    • 53
    • 70

    Becoming Sunny

    • 54
    • 72

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 53
    • 71

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 55
    • 73

    Mostly Cloudy

Today 16 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 16 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.

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Guemes Island Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    50 °F

  • Average August

    62.6 °F

  • Highest 6 August, 2026

    82.4 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.3 °F
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