Basalt Weather Forecast

    • 44
    • 71

    Increasing Clouds

    • 48
    • 72

    Mostly Cloudy

    • 47
    • 70

    Chance Thunderstorms

    • 46
    • 70

    Chance Thunderstorms

    • 45
    • 72

    Slight Chance Thunderstorms

    • 48
    • 76

    Mostly Sunny

Today 18 Sep Central Colorado River Basin

Mostly clear. Highs in the 70s.

Tonight 18 Sep Central Colorado River Basin

Mostly clear. Lows 35 to 45.

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Basalt Temperature Statistics

September Temperature

Aspen-Pitkin County Airport (12.4 miles)

  • Lowest 13 September, 2025

    37.9 °F

  • Average September

    57.7 °F

  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Aspen-Pitkin County Airport (12.4 miles)

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  • Average Low 2020–2025

    29.3 °F

  • Average 2020–2025

    43 °F

  • Average High 2020–2025

    57 °F
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