Bellingham Weather Forecast

    • 52
    • 73

    Increasing Clouds

    • 53
    • 74

    Partly Sunny

    • 51
    • 73

    Partly Sunny

    • 49
    • 67

    Rain Likely

    • 47
    • 62

    Rain Likely

    • 49
    • 66

    Partly Sunny

Today 21 May Lowlands of Western Whatcom County

Mostly sunny. Highs in the mid 60s to lower 70s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 21 May Lowlands of Western Whatcom County

Partly cloudy. Lows in the upper 40s to mid 50s. Light wind.

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Bellingham Temperature Statistics

May Temperature

Bellingham, Bellingham International Airport (3.1 miles)

  • Lowest 16 May, 2026

    43.6 °F

  • Average May

    57 °F

  • Highest 12 May, 2026

    77.6 °F

Climate (2021–Present)

Bellingham, Bellingham International Airport (3.1 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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