Marshalltown Weather Forecast

    • 45
    • 73

    Becoming Sunny

    • 41
    • 75

    Partly Sunny

    • 39
    • 65

    Mostly Sunny

    • 52
    • 69

    Chance Rain Showers

    • 46
    • 79

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 53
    • 77

    Chance Rain Showers

Today 8 May Marshall

Sunny. Near steady temperature in the lower 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 8 May Marshall

Partly cloudy with a chance of Sprinkles this Evening, then mostly clear after midnight. Lows in the mid 40s. Southwest Winds 5 to 10 Mph, becoming west after midnight.

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  • Temperature Real-Time

Marshalltown Temperature Statistics

May Temperature

Marshalltown, Marshalltown Municipal Airport (3.7 miles)

  • Lowest 2 May, 2026

    28.7 °F

  • Average May

    51.6 °F

  • Highest 4 May, 2026

    81.6 °F

Climate (2021–Present)

Marshalltown, Marshalltown Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.3 °F
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