Portsmouth Weather Forecast

    • 58
    • 91

    Sunny

    • 59
    • 92

    Mostly Sunny

    • 62
    • 92

    Partly Sunny

    • 64
    • 90

    Partly Sunny

    • 63
    • 88

    Chance Rain Showers

    • 62
    • 87

    Chance Rain Showers

Today 18 Sep Scioto

Sunny. Highs in the upper 80s. Northwest Winds around 5 Mph.

Tonight 18 Sep Scioto

Clear. Lows in the upper 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

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Portsmouth Temperature Statistics

September Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 7 September, 2025

    48.2 °F

  • Average September

    66.6 °F

  • Highest 14 September, 2025

    88 °F

Climate (2020–Present)

Ashland Regional Airport (18.6 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    67 °F
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