Lummi Island Weather Forecast

    • 53
    • 67

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

    • 48
    • 62

    Mostly Cloudy

    • 48
    • 62

    Partly Sunny

    • 49
    • 63

    Partly Sunny

    • 53
    • 67

    Partly Sunny

Today 27 May Lowlands of Western Whatcom County

Sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. North wind to 10 Mph becoming west around 10 Mph in the afternoon.

Tonight 27 May Lowlands of Western Whatcom County

Mostly clear. Lows in the upper 40s to mid 50s. West wind to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lummi Island Temperature Statistics

May Temperature

Bellingham, Bellingham International Airport (8.1 miles)

  • Lowest 16 May, 2026

    43.6 °F

  • Average May

    57.4 °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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