Plymouth Weather Forecast

    • 57
    • 82

    Partly Sunny

    • 53
    • 72

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

    • 67
    • 86

    Slight Chance Thunderstorms

Today 21 Jul Marshall

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 21 Jul Marshall

Mostly clear. Cooler. Less humid with Lows in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Real-Time

Plymouth Temperature Statistics

July Temperature

Starke County Airport (18 miles)

  • Lowest 8 July, 2026

    57.2 °F

  • Average July

    76 °F

  • Highest 1 July, 2026

    93.2 °F

Climate (2021–2026)

Starke County Airport (18 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    61.1 °F
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