Onawa Weather Forecast

    • 75
    • 90

    Slight Chance Thunderstorms

    • 69
    • 96

    Chance Thunderstorms

    • 67
    • 84

    Chance Thunderstorms

    • 69
    • 86

    Partly Sunny

    • 69
    • 92

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

Today 22 Jul Monona

Mostly cloudy this Morning, then becoming partly sunny. A slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 5 to 10 Mph, increasing to south 15 to 20 Mph with Gusts up to 30 Mph this afternoon. Chance of rain 20 percent. Heat index Values up to 101 this afternoon.

Tonight 22 Jul Monona

Mostly clear. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Onawa Temperature Statistics

July Temperature

Tekamah, Tekamah Municipal Airport (18 miles)

  • Lowest 13 July, 2025

    57.7 °F

  • Average July

    75.7 °F

  • Highest 3 July, 2025

    90.6 °F

Climate (2020–Present)

Tekamah, Tekamah Municipal Airport (18 miles)

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  • Average Low 2020–2025

    39.8 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    64.6 °F
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