Lawson Lake Weather Forecast

    • 57
    • 79

    Sunny

    • 57
    • 78

    Sunny

    • 54
    • 74

    Partly Sunny

    • 53
    • 71

    Partly Sunny

    • 54
    • 71

    Partly Sunny

    • 55
    • 71

    Partly Sunny

Today 16 Jul San Juan County

Sunny. Highs in the mid 70s to lower 80s. Light wind.

Tonight 16 Jul San Juan County

Mostly clear. Lows in the mid 50s to lower 60s. Light wind.

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Lawson Lake Temperature Statistics

July Temperature

Friday Harbor Airport (4.3 miles)

  • Lowest 4 July, 2025

    46.7 °F

  • Average July

    60.4 °F

  • Highest 13 July, 2025

    78.1 °F

Climate (2020–Present)

Friday Harbor Airport (4.3 miles)

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  • Average Low 2020–2025

    44.3 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    59.5 °F
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