Guemes Island Weather Forecast

    • 52
    • 64

    Rain

    • 49
    • 61

    Rain

    • 49
    • 61

    Partly Sunny

    • 50
    • 63

    Mostly Cloudy

    • 49
    • 63

    Partly Sunny

    • 49
    • 62

    Partly Sunny

Today 28 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Highs in the 60s. Southeast wind to 10 Mph becoming south in the afternoon.

Tonight 28 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Windy. Mostly cloudy in the Evening, then a chance of rain in the late evening and early morning. Cloudy with rain likely in the morning. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 50s. Southeast wind 10 to 15 Mph with Gusts to 25 Mph increasing to 15 to 30 Mph after midnight.

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Guemes Island Temperature Statistics

September Temperature

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

  • Lowest 16 September, 2026

    46.4 °F

  • Average September

    58.6 °F

  • Highest 9 September, 2026

    75.2 °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

    59.2 °F
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