Brown Island Weather Forecast

    • 59
    • 81

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 55
    • 76

    Mostly Cloudy

    • 55
    • 74

    Partly Sunny

    • 55
    • 77

    Partly Sunny

    • 55
    • 76

    Mostly Sunny

Today 17 Aug San Juan County

Sunny. Highs in the mid 70s to lower 80s. North wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 17 Aug San Juan County

Clear in the evening then becoming partly cloudy. Lows in the upper 50s to mid 60s. West wind to 10 Mph becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brown Island Temperature Statistics

August Temperature

Friday Harbor Airport (1.2 miles)

  • Lowest 5 August, 2022

    46.9 °F
  • Average August

    62 °F
  • Highest 7 August, 2022

    82 °F

Climate (2010–Present)

Friday Harbor Airport (1.2 miles)

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  • Average Low 2010–Present

    43.6 °F
  • Average 2010–Present

    50.3 °F
  • Average High 2010–Present

    57.8 °F
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