Lummi Island - Bumstead Spit Weather Forecast

    • 50
    • 61

    Mostly Sunny

    • 55
    • 65

    Partly Sunny

    • 57
    • 70

    Mostly Sunny

    • 53
    • 66

    Mostly Cloudy

    • 52
    • 63

    Partly Sunny

    • 51
    • 61

    Rain Likely

Today 31 May Lowlands of Western Whatcom County

Sunny. Highs in the 60s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 31 May Lowlands of Western Whatcom County

Mostly clear. Lows in the mid 40s to lower 50s. South wind to 10 Mph in the evening becoming light.

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Lummi Island - Bumstead Spit Temperature Statistics

May Temperature

Bellingham, Bellingham International Airport (8.1 miles)

  • Lowest 16 May, 2026

    43.6 °F

  • Average May

    57.7 °F

  • Highest 12 May, 2026

    77.6 °F

Climate (2021–Present)

Bellingham, Bellingham International Airport (8.1 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    59.2 °F
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