Arapahoe Basin Ski Area Weather Forecast

    • 40
    • 53

    Rain Showers

    • 40
    • 48

    Rain Showers

    • 35
    • 52

    Chance Thunderstorms

    • 37
    • 56

    Partly Sunny

    • 38
    • 57

    Partly Sunny

    • 34
    • 51

    Rain/Snow Likely

Today 23 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly cloudy. Slight chance of rain Showers in the Morning, then a chance of Thunderstorms in the afternoon. Highs 50 to 60. Chance of rain 50 percent.

Tonight 23 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Slight chance of Thunderstorms in the evening. Rain Showers likely. Lows 36 to 46. Chance of rain 70 percent.

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  • Temperature Real-Time

Arapahoe Basin Ski Area Temperature Statistics

September Temperature

Copper Mountain - Red Cliff Pass (18.6 miles)

  • Lowest 19 September, 2026

    32 °F

  • Average September

    46.8 °F

  • Highest 6 September, 2026

    68 °F

Climate (2021–2026)

Copper Mountain - Red Cliff Pass (18.6 miles)

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  • Average Low 2021–2026

    29.4 °F

  • Average 2021–2026

    35.7 °F

  • Average High 2021–2026

    42 °F
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