Heart Lake Weather Forecast

    • 47
    • 66

    Mostly Cloudy

    • 48
    • 65

    Mostly Cloudy

    • 51
    • 68

    Partly Sunny

    • 51
    • 73

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 50
    • 68

    Mostly Sunny

Today 30 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Patchy fog in the morning. Highs in the 60s to lower 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 30 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Heart Lake Temperature Statistics

April Temperature

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

  • Lowest 8 April, 2026

    34 °F

  • Average April

    47.5 °F

  • Highest 19 April, 2026

    59 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    56.1 °F
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