Plymouth Weather Forecast

    • 63
    • 93

    Chance Thunderstorms

    • 63
    • 94

    Chance Thunderstorms

    • 64
    • 96

    Partly Sunny

    • 65
    • 97

    Chance Rain Showers

    • 63
    • 92

    Rain Showers Likely

    • 62
    • 90

    Chance Rain Showers

Today 17 Jul Eastern Box Elder County

Partly cloudy. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s.

Tonight 17 Jul Eastern Box Elder County

Mostly cloudy with a 10 percent chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 60s.

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Plymouth Temperature Statistics

July Temperature

Logan-Cache Airport (16.2 miles)

  • Lowest 1 July, 2026

    46 °F

  • Average July

    77 °F

  • Highest 12 July, 2026

    105.1 °F

Climate (2021–2026)

Logan-Cache Airport (16.2 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    62 °F
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