San Juan Island - Mosquito Bay Weather Forecast

    • 39
    • 54

    Rain Showers

    • 40
    • 55

    Rain Showers Likely

    • 41
    • 55

    Chance Rain Showers

    • 43
    • 57

    Mostly Cloudy

    • 43
    • 58

    Slight Chance Rain Showers

    • 45
    • 60

    Partly Sunny

Today 28 Apr San Juan County

A chance of Showers in the Morning, then Showers likely in the late morning and early afternoon. A chance of Showers late in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the 50s. Southwest wind 10 to 15 Mph with Gusts to 25 Mph.

Tonight 28 Apr San Juan County

A slight chance of Thunderstorms in the evening. Rain Showers likely until early Morning, then a chance of rain Showers in the morning. Some Thunderstorms may produce small hail in the evening. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Lows in the upper 30s to mid 40s. Southwest wind 10 to 20 Mph becoming west 10 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Mosquito Bay Temperature Statistics

April Temperature

Friday Harbor Airport (7.5 miles)

  • Lowest 17 April, 2024

    35.7 °F

  • Average April

    50.8 °F

  • Highest 20 April, 2024

    71.7 °F

Climate (2019–Present)

Friday Harbor Airport (7.5 miles)

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  • Average Low 2019–2024

    43.9 °F

  • Average 2019–2024

    50.9 °F

  • Average High 2019–2024

    58.5 °F
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