San Juan Island - Cattle Point Lighthouse Weather Forecast

    • 46
    • 60

    Rain Showers

    • 46
    • 60

    Rain Showers Likely

    • 46
    • 61

    Mostly Cloudy

    • 47
    • 63

    Mostly Cloudy

    • 47
    • 63

    Slight Chance Rain Showers

    • 48
    • 63

    Partly Sunny

Today 19 May San Juan County

Partly sunny with a chance of Showers. Highs in the upper 50s to mid 60s. Southwest wind 10 to 15 Mph.

Tonight 19 May San Juan County

Mostly cloudy. A chance of Showers in the Evening, then Showers likely late in the evening. A chance of Showers after midnight. Rainfall Amounts less than a tenth of an inch likely. Lows in the 40s. Southwest wind around 10 Mph. Gusts to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Cattle Point Lighthouse Temperature Statistics

May Temperature

Friday Harbor Airport (5.6 miles)

  • Lowest 4 May, 2025

    38.6 °F

  • Average May

    59.1 °F

  • Highest 6 May, 2025

    85.6 °F

Climate (2020–Present)

Friday Harbor Airport (5.6 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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