Cultus Mountain Weather Forecast

    • 50
    • 60

    Increasing Clouds

    • 49
    • 57

    Mostly Cloudy

    • 47
    • 56

    Mostly Cloudy

    • 46
    • 53

    Rain Likely

    • 44
    • 51

    Rain Likely

    • 44
    • 53

    Mostly Cloudy

Today 21 Sep Foothills and Valleys of the North Cascades

Sunny in the morning then becoming partly sunny. Areas of fog in the morning. Highs in the mid 60s to lower 70s. Light wind.

Tonight 21 Sep Foothills and Valleys of the North Cascades

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. South wind to 10 Mph. Gusts to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cultus Mountain Temperature Statistics

September Temperature

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

  • Lowest 16 September, 2026

    46.4 °F

  • Average September

    59.6 °F

  • Highest 9 September, 2026

    75.2 °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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