Peaceful Valley Weather Forecast

    • 52
    • 80

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

    • 50
    • 75

    Mostly Sunny

    • 53
    • 82

    Sunny

    • 55
    • 84

    Mostly Sunny

Today 12 Sep Foothills and Valleys of the North Cascades

Cloudy in the morning then becoming partly sunny. Highs in the 70s. Light wind.

Tonight 12 Sep Foothills and Valleys of the North Cascades

Mostly cloudy. A slight chance of rain after midnight. A chance of rain in the morning. Lows in the lower to mid 50s. West wind to 10 Mph becoming southeast with Gusts to 20 Mph after midnight.

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Peaceful Valley Temperature Statistics

September Temperature

Bellingham, Bellingham International Airport (19.9 miles)

  • Lowest 6 September, 2026

    44.7 °F

  • Average September

    60.7 °F

  • Highest 8 September, 2026

    72.6 °F

Climate (2021–2026)

Bellingham, Bellingham International Airport (19.9 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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