Plymouth Weather Forecast

    • 34
    • 65

    Mostly Sunny

    • 42
    • 64

    Mostly Sunny

    • 41
    • 65

    Mostly Sunny

    • 33
    • 61

    Sunny

    • 38
    • 63

    Mostly Sunny

    • 45
    • 68

    Partly Sunny

    • 45
    • 65

    Partly Sunny

Today 20 Oct Ashtabula Inland

Partly sunny. Highs in the upper 50s.

Tonight 20 Oct Ashtabula Inland

Mostly clear. Lows in the mid 30s. Northeast Winds 5 to 10 Mph, becoming east after midnight.

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Plymouth Temperature Statistics

October Temperature

Ashtabula - Northeast Ohio Regional Airport (3.7 miles)

  • Lowest 18 October, 2026

    33.1 °F

  • Average October

    57.1 °F

  • Highest 13 October, 2026

    84.9 °F

Climate (2021–2026)

Ashtabula - Northeast Ohio Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    60.5 °F
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