Blue Mesa Reservoir Weather Forecast

    • 42
    • 76

    Decreasing Clouds

    • 41
    • 74

    Chance Thunderstorms

    • 37
    • 71

    Mostly Sunny

    • 38
    • 72

    Mostly Sunny

    • 41
    • 74

    Partly Sunny

    • 41
    • 75

    Mostly Sunny

    • 41
    • 75

    Mostly Sunny

Today 15 Sep Upper Gunnison River Valley

Sunny. Highs 65 to 75.

Tonight 15 Sep Upper Gunnison River Valley

Partly cloudy. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Blue Mesa Reservoir Temperature Statistics

September Temperature

Gunnison, Gunnison-Crested Butte Regional Airport (15.5 miles)

  • Lowest 6 September, 2025

    37 °F

  • Average September

    56.2 °F

  • Highest 1 September, 2025

    79 °F

Climate (2020–Present)

Gunnison, Gunnison-Crested Butte Regional Airport (15.5 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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