Marietta Weather Forecast

    • 48
    • 55

    Rain Showers

    • 50
    • 64

    Rain Showers Likely

    • 53
    • 66

    Mostly Cloudy

    • 55
    • 68

    Rain Showers

    • 47
    • 68

    Rain Showers Likely

    • 43
    • 62

    Chance Rain Showers

Today 30 Oct Marshall

A slight chance of Thunderstorms this morning. Showers likely. Highs in the mid 50s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 30 Oct Marshall

Cloudy. A chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Lows in the upper 40s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

October Temperature

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

  • Lowest 17 October, 2026

    30.7 °F

  • Average October

    60 °F

  • Highest 11 October, 2026

    88.6 °F

Climate (2021–2026)

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    61.4 °F
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