Marengo Weather Forecast

    • 60
    • 81

    Decreasing Clouds

    • 58
    • 80

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 67
    • 84

    Partly Sunny

    • 70
    • 88

    Partly Sunny

    • 70
    • 89

    Slight Chance Thunderstorms

Today 27 Aug Morrow

Partly cloudy. Highs around 80. West Winds around 5 Mph.

Tonight 27 Aug Morrow

Partly cloudy in the Evening, then clearing. Lows around 60. North Winds around 5 Mph.

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Marengo Temperature Statistics

August Temperature

Knox County Airfield (15.5 miles)

  • Lowest 24 August, 2026

    50 °F

  • Average August

    71 °F

  • Highest 5 August, 2026

    87.8 °F

Climate (2021–2026)

Knox County Airfield (15.5 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    61.7 °F
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