Grundy Center Municipal Airport Weather Forecast

    • 64
    • 77

    Mostly Cloudy

    • 71
    • 88

    Partly Sunny

    • 75
    • 92

    Chance Thunderstorms

    • 70
    • 93

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

    • 67
    • 88

    Slight Chance Thunderstorms

Today 24 Jul Grundy

Mostly cloudy with a chance of Showers this Morning, then partly sunny this afternoon. Highs in the upper 70s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 24 Jul Grundy

Mostly cloudy. Lows in the mid 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grundy Center Municipal Airport Temperature Statistics

July Temperature

Marshalltown, Marshalltown Municipal Airport (16.8 miles)

  • Lowest 22 July, 2026

    57 °F

  • Average July

    76.2 °F

  • Highest 2 July, 2026

    91.7 °F

Climate (2021–2026)

Marshalltown, Marshalltown Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.4 °F
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