Gunnison Reservoir Weather Forecast

    • 59
    • 89

    Slight Chance Thunderstorms

    • 56
    • 83

    Rain Showers Likely

    • 52
    • 78

    Rain Showers

    • 50
    • 77

    Chance Thunderstorms

    • 51
    • 78

    Slight Chance Thunderstorms

    • 54
    • 81

    Slight Chance Thunderstorms

Today 11 Aug Sanpete Valley

Partly sunny in the Morning, then partly cloudy with a 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s.

Tonight 11 Aug Sanpete Valley

A 20 percent chance of Showers and Thunderstorms in the evening. Mostly cloudy. Lows in the lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gunnison Reservoir Temperature Statistics

August Temperature

Delta, Delta Municipal Airport (44.1 miles)

  • Lowest 5 August, 2026

    55.4 °F

  • Average August

    83.3 °F

  • Highest 1 August, 2026

    104 °F

Climate (2021–2026)

Delta, Delta Municipal Airport (44.1 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    66.4 °F
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