Jefferson Weather Forecast

    • 66
    • 79

    Rain Showers Likely

    • 61
    • 77

    Chance Rain Showers

    • 54
    • 72

    Partly Sunny

    • 60
    • 72

    Rain Showers

    • 58
    • 72

    Chance Rain Showers

    • 58
    • 73

    Chance Rain Showers

Today 16 Sep Ashtabula Inland

Mostly cloudy with Showers likely with a slight chance of Thunderstorms this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs around 80. South Winds around 5 Mph, becoming northwest around 5 Mph this afternoon. Chance of rain 70 percent.

Tonight 16 Sep Ashtabula Inland

Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the mid 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jefferson Temperature Statistics

September Temperature

Ashtabula - Northeast Ohio Regional Airport (4.3 miles)

  • Lowest 7 September, 2026

    48 °F

  • Average September

    69.1 °F

  • Highest 2 September, 2026

    91.9 °F

Climate (2021–2026)

Ashtabula - Northeast Ohio Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.6 °F
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