Marietta Weather Forecast

    • 56
    • 65

    Rain Showers

    • 60
    • 77

    Rain Showers

    • 61
    • 83

    Rain Showers Likely

    • 60
    • 81

    Chance Thunderstorms

    • 63
    • 82

    Rain Showers Likely

    • 62
    • 83

    Rain Showers Likely

Today 22 May Washington

Showers with a slight chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the lower 60s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 22 May Washington

Showers with a slight chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Lows in the mid 50s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

May Temperature

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

  • Lowest 3 May, 2026

    30.7 °F

  • Average May

    59.3 °F

  • Highest 18 May, 2026

    89.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    66.4 °F
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