Carefree Lake Weather Forecast

    • 46
    • 58

    Mostly Cloudy

    • 48
    • 61

    Mostly Cloudy

    • 48
    • 62

    Mostly Cloudy

    • 47
    • 60

    Chance Rain

    • 45
    • 58

    Slight Chance Rain

    • 46
    • 59

    Mostly Sunny

    • 46
    • 60

    Mostly Sunny

Today 18 Apr San Juan County

Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 18 Apr San Juan County

Mostly cloudy. Lows in the 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carefree Lake Temperature Statistics

April Temperature

Friday Harbor Airport (5 miles)

  • Lowest 15 April, 2026

    33.1 °F

  • Average April

    47.7 °F

  • Highest 5 April, 2026

    62.1 °F

Climate (2021–Present)

Friday Harbor Airport (5 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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