Neva Lake Weather Forecast

    • 51
    • 69

    Increasing Clouds

    • 52
    • 66

    Mostly Cloudy

    • 52
    • 70

    Chance Rain

    • 51
    • 69

    Chance Rain

    • 51
    • 67

    Mostly Sunny

    • 53
    • 69

    Mostly Sunny

    • 54
    • 72

    Sunny

Today 10 Sep San Juan County

Mostly sunny. Highs in the 60s. West wind to 10 Mph in the morning becoming light.

Tonight 10 Sep San Juan County

Partly cloudy then becoming mostly cloudy late in the evening then becoming partly cloudy. Lows in the upper 40s to mid 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Neva Lake Temperature Statistics

September Temperature

Friday Harbor Airport (4.3 miles)

  • Lowest 3 September, 2026

    48.9 °F

  • Average September

    58.6 °F

  • Highest 6 September, 2026

    73 °F

Climate (2021–2026)

Friday Harbor Airport (4.3 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.6 °F
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