Aspen Weather Forecast

    • 40
    • 71

    Partly Sunny

    • 45
    • 71

    Chance Thunderstorms

    • 45
    • 68

    Chance Thunderstorms

    • 45
    • 68

    Chance Rain Showers

    • 43
    • 67

    Chance Thunderstorms

    • 44
    • 69

    Chance Rain Showers

Today 21 Sep Gore and Elk Mountains/Central Mountain Valleys

Sunny. Highs 55 to 65.

Tonight 21 Sep Gore and Elk Mountains/Central Mountain Valleys

Partly cloudy. Lows in the 30s.

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Aspen Temperature Statistics

September Temperature

Aspen-Pitkin County Airport (3.7 miles)

  • Lowest 10 September, 2026

    40.6 °F

  • Average September

    63 °F

  • Highest 6 September, 2026

    84.7 °F

Climate (2021–2026)

Aspen-Pitkin County Airport (3.7 miles)

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  • Average Low 2021–2026

    29.9 °F

  • Average 2021–2026

    43.7 °F

  • Average High 2021–2026

    57.9 °F
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