Arvada Weather Forecast

    • 44
    • 60

    Gradual Clearing

    • 45
    • 59

    Mostly Cloudy

    • 40
    • 57

    Chance Rain Showers

    • 39
    • 59

    Mostly Sunny

    • 37
    • 57

    Partly Sunny

    • 38
    • 55

    Partly Sunny

Today 31 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy in the Morning, then becoming partly cloudy. Areas of dense fog in the morning. Highs near 60.

Tonight 31 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy in the Evening, then becoming mostly cloudy. Lows 38 to 44.

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Arvada Temperature Statistics

October Temperature

Broomfield / Jeffco (6.8 miles)

  • Lowest 16 October, 2026

    35.6 °F

  • Average October

    57.9 °F

  • Highest 5 October, 2026

    89.6 °F

Climate (2021–2026)

Broomfield / Jeffco (6.8 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    66.1 °F
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