San Juan Island - Bellevue Point Weather Forecast

    • 35
    • 49

    Mostly Cloudy

    • 33
    • 44

    Chance Rain

    • 33
    • 46

    Slight Chance Rain

    • 38
    • 47

    Mostly Cloudy

    • 38
    • 50

    Chance Rain

    • 39
    • 51

    Chance Rain

Today 28 Mar San Juan County

Mostly cloudy. A slight chance of rain late in the morning. Highs near 50. Light wind.

Tonight 28 Mar San Juan County

Mostly cloudy until early Morning, then partly cloudy with a slight chance of rain in the morning. Lows in the mid 30s to lower 40s. West wind to 10 Mph.

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San Juan Island - Bellevue Point Temperature Statistics

March Temperature

Friday Harbor Airport (6.2 miles)

  • Lowest 10 March, 2026

    30 °F

  • Average March

    44.7 °F

  • Highest 20 March, 2026

    59 °F

Climate (2021–Present)

Friday Harbor Airport (6.2 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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