Rainbow Ridge Weather Forecast

    • 49
    • 71

    Chance Thunderstorms

    • 48
    • 72

    Mostly Sunny

    • 53
    • 80

    Partly Sunny

    • 55
    • 84

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 53
    • 83

    Mostly Sunny

Today 17 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy in the Morning, then becoming mostly cloudy. Slight chance of Showers in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent.

Tonight 17 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the mid to upper 40s. Chance of rain 40 percent.

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Rainbow Ridge Temperature Statistics

September Temperature

Broomfield / Jeffco (6.8 miles)

  • Lowest 6 September, 2025

    48.2 °F

  • Average September

    66.2 °F

  • Highest 10 September, 2025

    91.4 °F

Climate (2020–Present)

Broomfield / Jeffco (6.8 miles)

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  • Average Low 2020–2025

    41.2 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    64.9 °F
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