Cultus Mountain Weather Forecast

    • 48
    • 59

    Mostly Cloudy

    • 48
    • 61

    Chance Rain

    • 50
    • 63

    Partly Sunny

    • 52
    • 59

    Slight Chance Rain

    • 51
    • 61

    Partly Sunny

    • 55
    • 66

    Partly Sunny

Today 4 Sep Foothills and Valleys of the North Cascades

Partly sunny. A slight chance of rain early in the afternoon. A chance of Showers and a slight chance of Thunderstorms late in the afternoon. Highs in the mid 60s to lower 70s. Light wind.

Tonight 4 Sep Foothills and Valleys of the North Cascades

Cloudy. A chance of rain in the Evening, then a slight chance of rain after midnight. Lows near 50. Light wind.

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Cultus Mountain Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2026

    51.8 °F

  • Average September

    61.2 °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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