Grandaddy Lake Weather Forecast

    • 39
    • 54

    Mostly Sunny

    • 41
    • 54

    Partly Sunny

    • 39
    • 52

    Chance Rain Showers

    • 35
    • 45

    Rain Showers

    • 35
    • 47

    Chance Rain Showers

    • 36
    • 52

    Mostly Sunny

    • 38
    • 54

    Mostly Sunny

Today 25 Sep Western Uinta Mountains

Partly cloudy. Highs around 60.

Tonight 25 Sep Western Uinta Mountains

Mostly clear. Lows around 40.

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Grandaddy Lake Temperature Statistics

September Temperature

Evanston, Evanston-Uinta County Burns Field (47.8 miles)

  • Lowest 20 September, 2026

    37.7 °F

  • Average September

    60 °F

  • Highest 12 September, 2026

    81.6 °F

Climate (2021–2026)

Evanston, Evanston-Uinta County Burns Field (47.8 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    56.1 °F
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