Cascade Canyon Open Space Preserve Weather Forecast

    • 54
    • 80

    Increasing Clouds

    • 54
    • 71

    Mostly Cloudy

    • 55
    • 69

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 58
    • 85

    Mostly Sunny

    • 59
    • 87

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 19 Sep North Bay Interior Valleys

Sunny. Highs in the mid 70s to upper 80s. Southwest Winds 5 to 15 Mph.

Tonight 19 Sep North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 50s to lower 60s. Southwest Winds 5 to 15 Mph.

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Cascade Canyon Open Space Preserve Temperature Statistics

September Temperature

Novato / Gnoss Field (11.2 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    66.7 °F

  • Highest 9 September, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (11.2 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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