Marietta Weather Forecast

    • 60
    • 82

    Rain Showers

    • 56
    • 76

    Mostly Sunny

    • 55
    • 73

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

    • 63
    • 81

    Mostly Cloudy

    • 64
    • 82

    Slight Chance Thunderstorms

Today 22 Aug Washington

Mostly sunny. Areas of fog in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 22 Aug Washington

Mostly clear. Patchy fog. Lows in the lower 60s. Light and variable Winds.

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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 4 August, 2026

    59.6 °F

  • Average August

    75.4 °F

  • Highest 5 August, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    66.4 °F
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