Northwest Arvada Weather Forecast

    • 57
    • 85

    Decreasing Clouds

    • 55
    • 82

    Partly Sunny

    • 56
    • 83

    Mostly Sunny

    • 56
    • 85

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 52
    • 78

    Chance Rain Showers

    • 49
    • 71

    Chance Rain Showers

Today 6 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy with a 20 percent chance of Showers. Highs 59 to 67.

Tonight 6 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy in the evening then clearing. Lows 49 to 57.

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  • Temperature Real-Time

Northwest Arvada Temperature Statistics

October Temperature

Broomfield / Jeffco (5.6 miles)

  • Lowest 2 October, 2026

    46.4 °F

  • Average October

    61.9 °F

  • Highest 3 October, 2026

    84.2 °F

Climate (2021–2026)

Broomfield / Jeffco (5.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    66 °F
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