Mammoth Weather Forecast

    • 59
    • 77

    Rain Showers Likely

    • 56
    • 71

    Rain Showers Likely

    • 54
    • 70

    Chance Thunderstorms

    • 57
    • 73

    Partly Sunny

    • 58
    • 75

    Partly Sunny

    • 61
    • 77

    Mostly Cloudy

    • 61
    • 79

    Slight Chance Thunderstorms

Today 12 Aug Western Millard and Juab Counties

Partly sunny. Rain Showers likely and a chance of Thunderstorms in the afternoon. Highs around 90. Chance of precipitation 60 percent.

Tonight 12 Aug Western Millard and Juab Counties

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 50s. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mammoth Temperature Statistics

August Temperature

Provo, Provo Municipal Airport (28.6 miles)

  • Lowest 5 August, 2026

    57 °F

  • Average August

    81 °F

  • Highest 1 August, 2026

    104 °F

Climate (2021–2026)

Provo, Provo Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    64.4 °F
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