Northwest Arvada Weather Forecast

    • 35
    • 58

    Mostly Sunny

    • 32
    • 55

    Increasing Clouds

    • 32
    • 53

    Partly Sunny

    • 43
    • 63

    Mostly Sunny

    • 42
    • 74

    Mostly Sunny

    • 41
    • 67

    Partly Sunny

    • 41
    • 70

    Partly Sunny

Today 29 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs in the mid 50s to lower 60s.

Tonight 29 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly clear. Lows in the lower to mid 30s.

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Northwest Arvada Temperature Statistics

October Temperature

Broomfield / Jeffco (5.6 miles)

  • Lowest 19 October, 2025

    33.8 °F

  • Average October

    54.9 °F

  • Highest 3 October, 2025

    84.2 °F

Climate (2020–Present)

Broomfield / Jeffco (5.6 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    64.9 °F
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