Marietta Weather Forecast

    • 57
    • 78

    Mostly Cloudy

    • 57
    • 76

    Partly Sunny

    • 53
    • 76

    Sunny

    • 55
    • 77

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 66
    • 83

    Chance Thunderstorms

Today 31 May Shelby

Partly cloudy. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 31 May Shelby

Partly cloudy. Lows in the upper 50s. Northeast Winds around 5 Mph.

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Marietta Temperature Statistics

May Temperature

Shelbyville Municipal Airport (10.6 miles)

  • Lowest 3 May, 2026

    35.7 °F

  • Average May

    61.5 °F

  • Highest 18 May, 2026

    86.6 °F

Climate (2021–Present)

Shelbyville Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    67 °F
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