Guemes Island - Boat Harbor Weather Forecast

    • 55
    • 71

    Mostly Sunny

    • 55
    • 71

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 53
    • 67

    Mostly Cloudy

    • 52
    • 67

    Partly Sunny

    • 52
    • 68

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

Today 22 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Highs in the upper 60s to mid 70s. Light wind becoming southwest to 10 Mph in the afternoon.

Tonight 22 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Patchy fog late in the night. Lows in the 50s. West wind to 10 Mph in the evening becoming light.

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Guemes Island - Boat Harbor Temperature Statistics

July Temperature

Burlington/Mount Vernon, Skagit Regional Airport (8.7 miles)

  • Lowest 4 July, 2025

    46.4 °F

  • Average July

    63 °F

  • Highest 16 July, 2025

    87.8 °F

Climate (2020–Present)

Burlington/Mount Vernon, Skagit Regional Airport (8.7 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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