Guemes Island Weather Forecast

    • 55
    • 70

    Rain Showers Likely

    • 53
    • 70

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 52
    • 71

    Chance Rain

    • 51
    • 69

    Slight Chance Rain

Today 22 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of Showers in the morning. A chance of Showers and a slight chance of Thunderstorms in the afternoon. Highs in the mid 60s to lower 70s. South wind 10 to 15 Mph.

Tonight 22 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy with a slight chance of Showers until early Morning, then cloudy with a chance of Showers in the morning. Lows in the 50s. Southwest wind to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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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