Gunnison Weather Forecast

    • 31
    • 56

    Mostly Sunny

    • 25
    • 60

    Chance Rain

    • 33
    • 53

    Partly Sunny

    • 36
    • 61

    Mostly Cloudy

    • 35
    • 55

    Mostly Cloudy

    • 34
    • 58

    Mostly Cloudy

    • 32
    • 61

    Mostly Cloudy

Today 16 Dec Sanpete Valley

Sunny. Highs in the upper 50s.

Tonight 16 Dec Sanpete Valley

Partly cloudy. Lows around 30.

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Gunnison Temperature Statistics

December Temperature

Delta, Delta Municipal Airport (39.8 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    34.6 °F

  • Highest 11 December, 2025

    59 °F

Climate (2021–Present)

Delta, Delta Municipal Airport (39.8 miles)

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  • Average Low 2021–2025

    39.6 °F

  • Average 2021–2025

    53.1 °F

  • Average High 2021–2025

    66.3 °F
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