Portsmouth Weather Forecast

    • 64
    • 88

    Mostly Sunny

    • 66
    • 90

    Partly Sunny

    • 56
    • 87

    Slight Chance Thunderstorms

    • 52
    • 79

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

Today 22 Aug Scioto

Sunny, hot with Highs in the mid 80s. Light and variable Winds.

Tonight 22 Aug Scioto

Mostly clear. Lows in the mid 60s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Temperature Statistics

August Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 2 August, 2025

    62.1 °F

  • Average August

    77 °F

  • Highest 19 August, 2025

    96.1 °F

Climate (2020–Present)

Ashland Regional Airport (18.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    67 °F
Get WillyWeather+ to remove ads