Plymouth Weather Forecast

    • 15
    • 40

    Mostly Sunny

    • 16
    • 36

    Mostly Sunny

    • 31
    • 39

    Rain/Snow Likely

    • 36
    • 42

    Rain

    • 36
    • 46

    Chance Rain/Snow

    • 37
    • 48

    Slight Chance Rain/Snow

    • 32
    • 49

    Chance Rain

Today 29 Jan Eastern Box Elder County

Sunny. Highs around 40.

Tonight 29 Jan Eastern Box Elder County

Mostly clear. Lows near 20.

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Plymouth Temperature Statistics

January Temperature

Logan-Cache Airport (16.2 miles)

  • Lowest 21 January, 2025

    0.8 °F

  • Average January

    25.7 °F

  • Highest 2 January, 2025

    48.7 °F

Climate (2020–Present)

Logan-Cache Airport (16.2 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    61.1 °F
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