Plymouth Weather Forecast

    • 55
    • 68

    Partly Sunny

    • 57
    • 69

    Partly Sunny

    • 56
    • 68

    Mostly Cloudy

    • 55
    • 72

    Partly Sunny

    • 60
    • 74

    Slight Chance Rain Showers

    • 59
    • 75

    Chance Rain Showers

    • 54
    • 71

    Chance Rain Showers

Today 26 Sep Ashtabula Inland

Partly cloudy. Near steady temperature in the upper 60s. North Winds 10 to 15 Mph.

Tonight 26 Sep Ashtabula Inland

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plymouth Temperature Statistics

September Temperature

Ashtabula - Northeast Ohio Regional Airport (3.7 miles)

  • Lowest 24 September, 2026

    43 °F

  • Average September

    66.4 °F

  • Highest 2 September, 2026

    91.9 °F

Climate (2021–2026)

Ashtabula - Northeast Ohio Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.5 °F
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