Lummi Island Weather Forecast

    • 47
    • 60

    Partly Sunny

    • 49
    • 61

    Mostly Cloudy

    • 49
    • 58

    Chance Rain

    • 46
    • 57

    Slight Chance Rain

    • 45
    • 58

    Partly Sunny

    • 46
    • 59

    Mostly Sunny

Today 19 Apr Lowlands of Western Whatcom County

Mostly sunny. Highs in the mid 60s to lower 70s. Northeast wind to 10 Mph becoming north in the afternoon.

Tonight 19 Apr Lowlands of Western Whatcom County

Partly cloudy. Lows in the mid 40s to lower 50s. West wind to 10 Mph becoming south after midnight.

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  • Temperature Real-Time

Lummi Island Temperature Statistics

April Temperature

Bellingham, Bellingham International Airport (8.1 miles)

  • Lowest 8 April, 2026

    31.6 °F

  • Average April

    48.4 °F

  • Highest 5 April, 2026

    65.6 °F

Climate (2021–Present)

Bellingham, Bellingham International Airport (8.1 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.1 °F
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