Mill Hollow Reservoir Weather Forecast

    • 38
    • 55

    Mostly Sunny

    • 44
    • 61

    Partly Sunny

    • 40
    • 56

    Rain Showers Likely

    • 40
    • 58

    Slight Chance Thunderstorms

    • 42
    • 61

    Mostly Sunny

    • 43
    • 60

    Partly Sunny

Today 20 Sep Western Uinta Mountains

Sunny. Highs around 60.

Tonight 20 Sep Western Uinta Mountains

Mostly clear. Lows in the lower 30s.

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Mill Hollow Reservoir Temperature Statistics

September Temperature

Provo, Provo Municipal Airport (37.3 miles)

  • Lowest 15 September, 2026

    50 °F

  • Average September

    71 °F

  • Highest 12 September, 2026

    91.9 °F

Climate (2021–2026)

Provo, Provo Municipal Airport (37.3 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    64.4 °F
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