Birch Bay Weather Forecast

    • 52
    • 67

    Chance Rain

    • 51
    • 60

    Rain Likely

    • 48
    • 58

    Rain Likely

    • 45
    • 55

    Rain

    • 46
    • 57

    Slight Chance Rain

    • 47
    • 59

    Mostly Cloudy

Today 12 May Lowlands of Western Whatcom County

Mostly sunny. Highs in the 70s. Light wind.

Tonight 12 May Lowlands of Western Whatcom County

Cloudy. A slight chance of rain late in the evening. A chance of rain after midnight. Lows in the upper 40s to mid 50s. Southwest wind to 10 Mph becoming south with Gusts to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Birch Bay Temperature Statistics

May Temperature

Bellingham, Bellingham International Airport (11.8 miles)

  • Lowest 1 May, 2026

    45.6 °F

  • Average May

    58.3 °F

  • Highest 3 May, 2026

    76.6 °F

Climate (2021–Present)

Bellingham, Bellingham International Airport (11.8 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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