Marietta Weather Forecast

    • 69
    • 92

    Partly Sunny

    • 69
    • 91

    Chance Thunderstorms

    • 67
    • 90

    Mostly Sunny

    • 70
    • 94

    Chance Thunderstorms

    • 66
    • 87

    Chance Thunderstorms

    • 63
    • 83

    Slight Chance Thunderstorms

    • 66
    • 87

    Mostly Sunny

Today 16 Aug Washington

Sunny, hot. Near steady temperature in the upper 80s. Light and variable Winds.

Tonight 16 Aug Washington

Mostly clear with a slight chance of Showers this Evening, then partly cloudy after midnight. Lows in the upper 60s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

August Temperature

Parkersburg, Mid-Ohio Valley Regional Airport (4.3 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    74.2 °F

  • Highest 12 August, 2025

    93.7 °F

Climate (2020–Present)

Parkersburg, Mid-Ohio Valley Regional Airport (4.3 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    66.2 °F
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