Keystone Resort Weather Forecast

    • 39
    • 70

    Mostly Sunny

    • 40
    • 72

    Mostly Sunny

    • 40
    • 72

    Slight Chance Thunderstorms

    • 40
    • 71

    Chance Thunderstorms

    • 40
    • 72

    Slight Chance Thunderstorms

    • 41
    • 72

    Slight Chance Thunderstorms

Today 31 Aug South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny. Highs 56 to 66.

Tonight 31 Aug South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly clear. Lows 33 to 43.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keystone Resort Temperature Statistics

August Temperature

Copper Mountain - Red Cliff Pass (14.3 miles)

  • Lowest 1 August, 2025

    44.6 °F

  • Average August

    59.8 °F

  • Highest 21 August, 2025

    75.2 °F

Climate (2020–Present)

Copper Mountain - Red Cliff Pass (14.3 miles)

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  • Average Low 2020–2025

    29.6 °F

  • Average 2020–2025

    36.1 °F

  • Average High 2020–2025

    42.4 °F
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