Derby Weather Forecast

    • 52
    • 78

    Rain Showers Likely

    • 52
    • 77

    Chance Rain Showers

    • 53
    • 85

    Partly Sunny

    • 49
    • 79

    Chance Rain Showers

    • 50
    • 75

    Chance Thunderstorms

    • 51
    • 81

    Mostly Sunny

    • 56
    • 85

    Partly Sunny

Today 13 Sep North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy in the morning. Slight chance of Showers in the Morning, then Showers likely and chance of Thunderstorms in the afternoon. Highs in the upper 70s. Northeast Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 60 percent.

Tonight 13 Sep North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Showers likely and chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows near 50. Northwest Winds 10 to 15 Mph with Gusts up to 20 Mph in the Evening, becoming light. Chance of rain 70 percent.

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Derby Temperature Statistics

September Temperature

Broomfield / Jeffco (10.6 miles)

  • Lowest 6 September, 2025

    48.2 °F

  • Average September

    67.1 °F

  • Highest 10 September, 2025

    91.4 °F

Climate (2020–Present)

Broomfield / Jeffco (10.6 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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