Portsmouth Weather Forecast

    • 42
    • 83

    Rain Showers

    • 37
    • 62

    Partly Sunny

    • 35
    • 57

    Mostly Sunny

    • 55
    • 75

    Chance Rain Showers

    • 54
    • 78

    Chance Thunderstorms

    • 58
    • 85

    Mostly Sunny

Today 18 Apr Scioto

Partly cloudy this Morning, then mostly cloudy with Showers with a chance of Thunderstorms this afternoon. Unseasonably warm with Highs in the lower 80s. Temperatures falling into the lower 70s this afternoon. South Winds 5 to 10 Mph, becoming southwest this afternoon. Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 18 Apr Scioto

Showers with a chance of Thunderstorms in the Evening, then Showers after midnight. Much cooler with Lows in the lower 40s. Northwest Winds 5 to 10 Mph. Chance of rain 80 percent.

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Portsmouth Temperature Statistics

April Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 6 April, 2026

    34 °F

  • Average April

    62.6 °F

  • Highest 12 April, 2026

    86 °F

Climate (2021–Present)

Ashland Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    67.3 °F
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