Portsmouth Weather Forecast

    • 41
    • 49

    Rain Showers Likely

    • 38
    • 59

    Chance Rain Showers

    • 43
    • 54

    Rain

    • 53
    • 63

    Chance Rain

    • 50
    • 66

    Mostly Cloudy

    • 49
    • 65

    Chance Rain

    • 23
    • 59

    Chance Rain

Today 22 Dec Scioto

Mostly cloudy. Highs in the upper 40s. Southeast Winds around 5 Mph.

Tonight 22 Dec Scioto

Mostly cloudy. A slight chance of Showers this Evening, then Showers likely after midnight. Warmer with Lows in the upper 30s. Temperatures rising into the mid 40s after midnight. South Winds around 5 Mph, becoming southwest with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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Portsmouth Temperature Statistics

December Temperature

Ashland Regional Airport (18.6 miles)

  • Lowest 15 December, 2025

    5 °F

  • Average December

    33.2 °F

  • Highest 18 December, 2025

    60.1 °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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