Portsmouth Weather Forecast

    • 69
    • 90

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 68
    • 87

    Rain Showers Likely

    • 67
    • 86

    Rain Showers Likely

    • 70
    • 88

    Chance Rain Showers

    • 71
    • 90

    Chance Thunderstorms

Today 5 Aug Scioto

Partly cloudy. A chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Light and variable Winds, becoming southwest around 5 Mph this late morning and afternoon. Chance of rain 40 percent.

Tonight 5 Aug Scioto

Partly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Muggy. Lows in the upper 60s. Southwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 40 percent.

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Portsmouth Temperature Statistics

August Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 1 August, 2026

    66.9 °F

  • Average August

    74.5 °F

  • Highest 2 August, 2026

    84 °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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