Marietta Weather Forecast

    • 5
    • 41

    Blizzard

    • 1
    • 15

    Blowing Snow

    • 22
    • 30

    Snow Likely

    • 33
    • 49

    Partly Sunny

    • 37
    • 64

    Partly Sunny

    • 41
    • 66

    Partly Sunny

Today 15 Mar Marshall

Rain with a slight chance of Thunderstorms in the Morning, then snow with rain likely in the afternoon. Areas of blowing snow in the afternoon. Snow accumulation around an inch. Very windy with Highs in the mid 40s. Temperature falling into the lower 30s in the afternoon. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph, increasing to north 30 to 40 Mph with Gusts up to 55 Mph in the afternoon. Chance of precipitation 90 percent.

Tonight 15 Mar Marshall

Cloudy with a chance of rain with a slight chance of Thunderstorms. Near steady temperature in the upper 30s. Southeast Winds 15 to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

March Temperature

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

  • Lowest 1 March, 2026

    17.7 °F
  • Average March

    41.3 °F
  • Highest 9 March, 2026

    69.1 °F

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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