Birch Bay Weather Forecast

    • 57
    • 69

    Increasing Clouds

    • 57
    • 68

    Partly Sunny

    • 57
    • 70

    Mostly Sunny

    • 57
    • 70

    Chance Rain

    • 56
    • 68

    Slight Chance Rain

    • 55
    • 69

    Partly Sunny

    • 55
    • 70

    Mostly Sunny

Today 18 Aug Lowlands of Western Whatcom County

Partly sunny in the morning then becoming sunny. Highs in the 70s. South wind to 10 Mph in the morning becoming light.

Tonight 18 Aug Lowlands of Western Whatcom County

Partly cloudy. Lows in the mid to upper 50s. Southwest wind to 10 Mph becoming south after midnight.

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Birch Bay Temperature Statistics

August Temperature

Bellingham, Bellingham International Airport (11.8 miles)

  • Lowest 3 August, 2026

    46.7 °F

  • Average August

    64.2 °F

  • Highest 7 August, 2026

    81.6 °F

Climate (2021–2026)

Bellingham, Bellingham International Airport (11.8 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.1 °F
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