Marietta Weather Forecast

    • 33
    • 55

    Becoming Sunny

    • 43
    • 61

    Mostly Sunny

    • 46
    • 73

    Slight Chance Thunderstorms

    • 45
    • 77

    Partly Sunny

    • 40
    • 64

    Chance Rain Showers

    • 37
    • 58

    Partly Sunny

Today 1 May Marshall

Partly sunny. A chance of Sprinkles in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 50s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 1 May Marshall

Partly cloudy in the Evening, then becoming mostly clear. Areas of frost after midnight. Lows in the lower 30s. North Winds 5 to 10 Mph.

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Marietta Temperature Statistics

May Temperature

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

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Climate (2021–Present)

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.2 °F
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