Grassy Trail Reservoir Weather Forecast

    • 57
    • 84

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

    • 59
    • 84

    Chance Thunderstorms

    • 58
    • 83

    Chance Thunderstorms

    • 56
    • 81

    Chance Thunderstorms

    • 54
    • 76

    Rain Showers Likely

Today 19 Aug Wasatch Plateau/Book Cliffs

Sunny. Highs in the mid 80s.

Tonight 19 Aug Wasatch Plateau/Book Cliffs

Mostly clear. Lows in the lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grassy Trail Reservoir Temperature Statistics

August Temperature

Price - Carbon County Regional Airport (18.6 miles)

  • Lowest 10 August, 2025

    54.6 °F

  • Average August

    75.2 °F

  • Highest 13 August, 2025

    97.6 °F

Climate (2020–Present)

Price - Carbon County Regional Airport (18.6 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    63.6 °F
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