Lummi Island Weather Forecast

    • 46
    • 59

    Mostly Sunny

    • 48
    • 62

    Mostly Cloudy

    • 49
    • 62

    Mostly Cloudy

    • 53
    • 66

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 52
    • 68

    Mostly Sunny

Today 29 Apr Lowlands of Western Whatcom County

Sunny. Patchy fog in the morning. Highs in the 60s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 29 Apr Lowlands of Western Whatcom County

Mostly clear. Lows in the mid to upper 40s. West wind to 10 Mph in the evening becoming light.

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Lummi Island Temperature Statistics

April Temperature

Bellingham, Bellingham International Airport (8.1 miles)

  • Lowest 8 April, 2026

    31.6 °F

  • Average April

    48.9 °F

  • Highest 19 April, 2026

    70 °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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