Heart Lake Weather Forecast

    • 51
    • 64

    Chance Rain Showers

    • 48
    • 62

    Chance Rain Showers

    • 51
    • 65

    Partly Sunny

    • 54
    • 74

    Mostly Sunny

    • 50
    • 66

    Slight Chance Rain Showers

    • 51
    • 68

    Mostly Sunny

Today 25 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Highs in the 60s to lower 70s. South wind 10 to 15 Mph becoming southwest in the afternoon.

Tonight 25 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of Showers after midnight. Lows in the upper 40s to mid 50s. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Heart Lake Temperature Statistics

May Temperature

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

  • Lowest 1 May, 2025

    37.9 °F

  • Average May

    51.9 °F

  • Highest 6 May, 2025

    64 °F

Climate (2020–Present)

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    56.2 °F
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