Grundy Center Weather Forecast

    • 30
    • 36

    Increasing Clouds

    • 32
    • 42

    Areas Fog

    • 29
    • 43

    Partly Sunny

    • 32
    • 50

    Mostly Sunny

    • 32
    • 44

    Chance Rain/Snow

    • 25
    • 41

    Chance Rain/Snow

    • 16
    • 31

    Slight Chance Snow

Today 4 Jan Grundy

Mostly cloudy. Highs in the mid 30s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 4 Jan Grundy

Mostly clear this Evening, then becoming partly cloudy. Areas of fog after midnight. Near steady temperature in the lower 30s. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grundy Center Temperature Statistics

January Temperature

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

  • Lowest 1 January, 2026

    12 °F

  • Average January

    20.4 °F

  • Highest 1 January, 2026

    26.1 °F

Climate (2021–Present)

Marshalltown, Marshalltown Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    61 °F
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