Lopez Island - Barlow Bay Weather Forecast

    • 50
    • 65

    Chance Rain Showers

    • 48
    • 64

    Chance Rain Showers

    • 51
    • 67

    Partly Sunny

    • 52
    • 73

    Mostly Sunny

    • 50
    • 67

    Slight Chance Rain Showers

    • 51
    • 68

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

Today 25 May San Juan County

Partly sunny. Highs in the 60s. South wind 10 to 15 Mph.

Tonight 25 May San Juan County

Mostly cloudy. A chance of rain after midnight. A slight chance of rain late in the night. Lows near 50. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lopez Island - Barlow Bay Temperature Statistics

May Temperature

Friday Harbor Airport (8.7 miles)

  • Lowest 4 May, 2025

    38.6 °F

  • Average May

    57.7 °F

  • Highest 6 May, 2025

    85.6 °F

Climate (2020–Present)

Friday Harbor Airport (8.7 miles)

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  • Average Low 2020–2025

    44.3 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    59.4 °F
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