Cultus Mountain Weather Forecast

    • 50
    • 63

    Increasing Clouds

    • 49
    • 57

    Mostly Cloudy

    • 51
    • 63

    Mostly Sunny

    • 55
    • 68

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 52
    • 63

    Partly Sunny

Today 6 Sep Foothills and Valleys of the North Cascades

Sunny. Highs in the 70s. Light wind.

Tonight 6 Sep Foothills and Valleys of the North Cascades

Mostly clear. Lows in the lower to mid 50s. Light wind becoming southeast to 10 Mph after midnight.

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Cultus Mountain Temperature Statistics

September Temperature

Burlington/Mount Vernon, Skagit Regional Airport (13 miles)

  • Lowest 3 September, 2026

    50 °F

  • Average September

    60.9 °F

  • Highest 1 September, 2026

    71.6 °F

Climate (2021–2026)

Burlington/Mount Vernon, Skagit Regional Airport (13 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.3 °F
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