Bellingham International Airport Weather Forecast

    • 49
    • 67

    Mostly Cloudy

    • 54
    • 67

    Chance Rain

    • 47
    • 64

    Rain

    • 47
    • 64

    Slight Chance Rain

    • 51
    • 69

    Partly Sunny

    • 52
    • 71

    Partly Sunny

    • 49
    • 66

    Mostly Cloudy

Today 23 May Lowlands of Western Whatcom County

Partly sunny. Highs in the mid 60s to lower 70s. South wind 10 to 15 Mph becoming southwest in the afternoon. Gusts to 25 Mph.

Tonight 23 May Lowlands of Western Whatcom County

Mostly cloudy then becoming partly cloudy late in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. South wind 10 to 15 Mph decreasing to 10 Mph or less after midnight. Gusts to 25 Mph.

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Bellingham International Airport Temperature Statistics

May Temperature

Bellingham, Bellingham International Airport (0 miles)

  • Lowest 16 May, 2026

    43.6 °F

  • Average May

    57.2 °F

  • Highest 12 May, 2026

    77.6 °F

Climate (2021–Present)

Bellingham, Bellingham International Airport (0 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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