Promontory Weather Forecast

    • 44
    • 66

    Mostly Sunny

    • 46
    • 71

    Sunny

    • 49
    • 74

    Sunny

    • 50
    • 74

    Mostly Sunny

    • 47
    • 74

    Mostly Cloudy

    • 45
    • 66

    Mostly Cloudy

Today 17 Mar Great Salt Lake Desert and Mountains

Sunny. Highs in the mid 70s.

Tonight 17 Mar Great Salt Lake Desert and Mountains

Mostly clear. Lows in the lower 40s.

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Promontory Temperature Statistics

March Temperature

BRIGHAM CITY AIRPORT (26.7 miles)

  • Lowest 11 March, 2026

    24.8 °F

  • Average March

    44.5 °F

  • Highest 12 March, 2026

    66.2 °F

Climate (2021–Present)

BRIGHAM CITY AIRPORT (26.7 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    64.2 °F
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