Grundy Center Weather Forecast

    • 52
    • 71

    Sunny

    • 54
    • 77

    Mostly Sunny

    • 49
    • 73

    Partly Sunny

    • 50
    • 69

    Partly Sunny

    • 53
    • 69

    Mostly Sunny

    • 59
    • 74

    Mostly Sunny

Today 5 Oct Grundy

Sunny. Highs in the lower 70s. East Winds around 5 Mph, becoming south this afternoon.

Tonight 5 Oct Grundy

Clear. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Grundy Center Temperature Statistics

October Temperature

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

  • Lowest 2 October, 2026

    41 °F

  • Average October

    56.8 °F

  • Highest 3 October, 2026

    71.1 °F

Climate (2021–2026)

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.3 °F
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