Mount Baker Weather Forecast

    • 47
    • 64

    Mostly Sunny

    • 55
    • 65

    Mostly Cloudy

    • 54
    • 62

    Rain Likely

    • 53
    • 64

    Mostly Cloudy

    • 53
    • 65

    Mostly Cloudy

    • 51
    • 64

    Partly Sunny

Today 27 Sep City of Seattle

Mostly sunny. Highs in the lower to mid 60s. North wind 10 to 15 Mph.

Tonight 27 Sep City of Seattle

Mostly clear. Lows in the mid to upper 40s. North wind to 10 Mph in the evening becoming light.

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Mount Baker Temperature Statistics

September Temperature

Boeing Field - King County International Airport (2.5 miles)

  • Lowest 25 September, 2026

    51.1 °F

  • Average September

    61.6 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Boeing Field - King County International Airport (2.5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
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