Arvada Weather Forecast

    • 40
    • 49

    Rain Showers Likely

    • 42
    • 57

    Chance Thunderstorms

    • 43
    • 65

    Rain Showers Likely

    • 44
    • 63

    Chance Thunderstorms

    • 47
    • 71

    Chance Thunderstorms

    • 51
    • 80

    Mostly Sunny

    • 54
    • 84

    Slight Chance Thunderstorms

Today 19 May Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of Showers early in the Afternoon, then a chance of Showers and slight chance of Thunderstorms late in the afternoon. Highs 47 to 53. Chance of rain 30 percent.

Tonight 19 May Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Showers likely in the Evening, then a chance of Showers after midnight. Lows near 40. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arvada Temperature Statistics

May Temperature

Broomfield / Jeffco (6.8 miles)

  • Lowest 5 May, 2026

    32 °F

  • Average May

    56.7 °F

  • Highest 11 May, 2026

    87.8 °F

Climate (2021–Present)

Broomfield / Jeffco (6.8 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    65.9 °F
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