Lummi Island Weather Forecast

    • 56
    • 74

    Sunny

    • 55
    • 69

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

    • 53
    • 67

    Partly Sunny

    • 55
    • 65

    Rain Likely

    • 53
    • 65

    Rain Likely

Today 16 Sep Lowlands of Western Whatcom County

Sunny. Highs in the mid 70s to lower 80s. Light wind.

Tonight 16 Sep Lowlands of Western Whatcom County

Clear. Areas of smoke. Lows in the mid 50s to lower 60s. East wind to 10 Mph becoming southeast after midnight. Gusts to 20 Mph.

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  • Temperature Real-Time

Lummi Island Temperature Statistics

September Temperature

Bellingham, Bellingham International Airport (8.1 miles)

  • Lowest 13 September, 2025

    52 °F

  • Average September

    62.1 °F

  • Highest 3 September, 2025

    79 °F

Climate (2020–Present)

Bellingham, Bellingham International Airport (8.1 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59 °F
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