Gunnison Reservoir Weather Forecast

    • 50
    • 81

    Mostly Sunny

    • 44
    • 77

    Mostly Sunny

    • 45
    • 76

    Sunny

    • 50
    • 78

    Partly Sunny

    • 52
    • 80

    Mostly Cloudy

    • 53
    • 79

    Chance Rain Showers

    • 51
    • 78

    Chance Thunderstorms

Today 15 Sep Sanpete Valley

Sunny in the morning then becoming partly cloudy. Highs in the mid 80s.

Tonight 15 Sep Sanpete Valley

Mostly clear. Lows in the mid 40s.

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Gunnison Reservoir Temperature Statistics

September Temperature

Delta, Delta Municipal Airport (44.1 miles)

  • Lowest 13 September, 2025

    46.4 °F

  • Average September

    72 °F

  • Highest 2 September, 2025

    95 °F

Climate (2020–Present)

Delta, Delta Municipal Airport (44.1 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    66.5 °F
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