Gunnison Weather Forecast

    • 34
    • 71

    Increasing Clouds

    • 39
    • 70

    Mostly Cloudy

    • 38
    • 69

    Slight Chance Thunderstorms

    • 38
    • 71

    Slight Chance Thunderstorms

    • 36
    • 72

    Mostly Sunny

    • 37
    • 75

    Mostly Sunny

Today 18 Sep Upper Gunnison River Valley

Sunny. Highs in the 60s.

Tonight 18 Sep Upper Gunnison River Valley

Partly cloudy. Lows 25 to 35.

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Gunnison Temperature Statistics

September Temperature

Gunnison, Gunnison-Crested Butte Regional Airport (0.6 miles)

  • Lowest 15 September, 2025

    32 °F

  • Average September

    55.5 °F

  • Highest 1 September, 2025

    79 °F

Climate (2020–Present)

Gunnison, Gunnison-Crested Butte Regional Airport (0.6 miles)

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  • Average Low 2020–2025

    24.5 °F

  • Average 2020–2025

    39.8 °F

  • Average High 2020–2025

    54.9 °F
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