Onawa Weather Forecast

    • 57
    • 76

    Chance Thunderstorms

    • 58
    • 75

    Slight Chance Thunderstorms

    • 59
    • 79

    Chance Rain Showers

    • 60
    • 80

    Chance Rain Showers

    • 55
    • 82

    Slight Chance Thunderstorms

    • 53
    • 77

    Mostly Sunny

Today 18 Sep Monona

Patchy fog in the morning. Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 18 Sep Monona

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onawa Temperature Statistics

September Temperature

Tekamah, Tekamah Municipal Airport (18 miles)

  • Lowest 7 September, 2025

    42.1 °F

  • Average September

    66.3 °F

  • Highest 13 September, 2025

    96.1 °F

Climate (2020–Present)

Tekamah, Tekamah Municipal Airport (18 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    64.6 °F
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