Gunnison Weather Forecast

    • 13
    • 38

    Mostly Sunny

    • 20
    • 47

    Increasing Clouds

    • 14
    • 45

    Chance Snow Showers

    • 15
    • 44

    Partly Sunny

    • 11
    • 46

    Mostly Sunny

    • 12
    • 44

    Partly Sunny

    • 19
    • 44

    Chance Rain/Snow

Today 18 Dec Upper Gunnison River Valley

Sunny. Highs in the 30s.

Tonight 18 Dec Upper Gunnison River Valley

Mostly clear. Lows 5 to 15.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gunnison Temperature Statistics

December Temperature

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

  • Lowest 2 December, 2025

    -5.1 °F

  • Average December

    16.4 °F

  • Highest 10 December, 2025

    39 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    24.8 °F

  • Average 2020–2025

    39.9 °F

  • Average High 2020–2025

    55 °F
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