Marengo Weather Forecast

    • 72
    • 92

    Slight Chance Thunderstorms

    • 75
    • 94

    Partly Sunny

    • 74
    • 95

    Chance Thunderstorms

    • 73
    • 92

    Slight Chance Thunderstorms

    • 71
    • 92

    Slight Chance Thunderstorms

    • 68
    • 89

    Partly Sunny

    • 66
    • 88

    Partly Sunny

Today 31 Aug Iowa

Mostly sunny with a slight chance of Showers and Thunderstorms. Hot. Near steady temperature around 90. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 100.

Tonight 31 Aug Iowa

Partly cloudy. Lows in the lower 70s. Southwest Winds around 5 Mph.

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Marengo Temperature Statistics

August Temperature

Cedar Rapids Airport (18.6 miles)

  • Lowest 24 August, 2026

    53.7 °F

  • Average August

    71.8 °F

  • Highest 10 August, 2026

    87.1 °F

Climate (2021–2026)

Cedar Rapids Airport (18.6 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    61.4 °F
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