Derby Weather Forecast

    • 53
    • 78

    Rain Showers Likely

    • 50
    • 71

    Chance Thunderstorms

    • 49
    • 71

    Slight Chance Thunderstorms

    • 51
    • 78

    Mostly Sunny

    • 54
    • 84

    Partly Sunny

    • 53
    • 83

    Mostly Sunny

Today 16 Sep North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy in the Morning, then becoming mostly cloudy. Slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 70s. North Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 40 percent.

Tonight 16 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 and slight chance of Thunderstorms after midnight. Lows in the lower 50s. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Derby Temperature Statistics

September Temperature

Broomfield / Jeffco (10.6 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 (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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