Keystone Weather Forecast

    • 46
    • 80

    Mostly Sunny

    • 39
    • 73

    Slight Chance Thunderstorms

    • 43
    • 76

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

    • 47
    • 83

    Mostly Sunny

Today 16 Jun South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny. Highs 66 to 76. West Winds 10 to 15 Mph in the afternoon.

Tonight 16 Jun South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Partly cloudy. Lows 39 to 49. West Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light.

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Keystone Temperature Statistics

June Temperature

Copper Mountain - Red Cliff Pass (13.7 miles)

  • Lowest 6 June, 2025

    35.6 °F

  • Average June

    48.8 °F

  • Highest 10 June, 2025

    62.6 °F

Climate (2020–Present)

Copper Mountain - Red Cliff Pass (13.7 miles)

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  • Average Low 2020–2025

    30 °F

  • Average 2020–2025

    36.5 °F

  • Average High 2020–2025

    42.9 °F
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