Sumas Mountain Weather Forecast

    • 53
    • 69

    Increasing Clouds

    • 45
    • 62

    Decreasing Clouds

    • 47
    • 58

    Partly Sunny

    • 43
    • 54

    Chance Rain

    • 41
    • 55

    Mostly Sunny

    • 44
    • 60

    Partly Sunny

    • 42
    • 54

    Rain Likely

Today 8 Jun West Slopes North Cascades and Passes

Mostly sunny. Freezing level near 12500 feet.

Tonight 8 Jun West Slopes North Cascades and Passes

Mostly cloudy. Freezing level near 12500 feet.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumas Mountain Temperature Statistics

June Temperature

Bellingham, Bellingham International Airport (16.2 miles)

  • Lowest 6 June, 2024

    42.1 °F

  • Average June

    55.4 °F

  • Highest 6 June, 2024

    68 °F

Climate (2019–Present)

Bellingham, Bellingham International Airport (16.2 miles)

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  • Average Low 2019–2024

    44.3 °F

  • Average 2019–2024

    51.2 °F

  • Average High 2019–2024

    58.8 °F
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