Portsmouth Weather Forecast

    • 66
    • 84

    Rain Showers Likely

    • 64
    • 82

    Rain Showers Likely

    • 62
    • 84

    Partly Sunny

    • 62
    • 84

    Chance Thunderstorms

    • 59
    • 81

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

Today 19 Aug Scioto

Partly cloudy. Near steady Temperatures in the lower 80s. West Winds around 5 Mph.

Tonight 19 Aug Scioto

Partly cloudy this Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. Southwest Winds around 5 Mph early this Evening, becoming light and variable. Chance of rain 70 percent.

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Portsmouth Temperature Statistics

August Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 4 August, 2026

    62.1 °F

  • Average August

    75.9 °F

  • Highest 16 August, 2026

    93 °F

Climate (2021–2026)

Ashland Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    67.4 °F
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