Promontory Weather Forecast

    • 34
    • 51

    Partly Sunny

    • 32
    • 49

    Mostly Sunny

    • 30
    • 47

    Mostly Sunny

    • 30
    • 46

    Partly Sunny

    • 29
    • 46

    Partly Sunny

    • 32
    • 46

    Partly Sunny

Today 10 Dec Great Salt Lake Desert and Mountains

Partly cloudy in the morning then clearing. Highs around 60.

Tonight 10 Dec Great Salt Lake Desert and Mountains

Mostly clear. Lows around 30.

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Promontory Temperature Statistics

December Temperature

BRIGHAM CITY AIRPORT (26.7 miles)

  • Lowest 1 December, 2025

    17.6 °F

  • Average December

    35.4 °F

  • Highest 6 December, 2025

    48.2 °F

Climate (2020–Present)

BRIGHAM CITY AIRPORT (26.7 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    63.7 °F
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