Derby Weather Forecast

    • 56
    • 72

    Rain Showers Likely

    • 55
    • 78

    Slight Chance Thunderstorms

    • 56
    • 84

    Partly Sunny

    • 60
    • 86

    Partly Sunny

    • 53
    • 80

    Chance Rain Showers

Today 24 Sep North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Mostly cloudy with a chance of Showers. Slight chance of Thunderstorms in the afternoon. Highs near 70. Chance of rain 40 percent.

Tonight 24 Sep North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Slight chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Patchy fog after midnight. Lows in the lower to mid 50s. Chance of rain 50 percent.

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Derby Temperature Statistics

September Temperature

Broomfield / Jeffco (10.6 miles)

  • Lowest 10 September, 2026

    53.6 °F

  • Average September

    68.9 °F

  • Highest 5 September, 2026

    93.2 °F

Climate (2021–2026)

Broomfield / Jeffco (10.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    66 °F
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