Grundy Center Weather Forecast

    • 51
    • 73

    Mostly Sunny

    • 53
    • 80

    Sunny

    • 57
    • 82

    Sunny

    • 58
    • 82

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 60
    • 85

    Chance Rain Showers

Today 9 May Grundy

Sunny. Highs in the mid 70s. Southeast Winds around 5 Mph.

Tonight 9 May Grundy

Mostly clear. Lows in the lower 40s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grundy Center Temperature Statistics

May Temperature

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

  • Lowest 4 May, 2025

    37.9 °F

  • Average May

    56 °F

  • Highest 6 May, 2025

    77 °F

Climate (2020–Present)

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    60.5 °F
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