Ottumwa Weather Forecast

    • 55
    • 77

    Areas Smoke

    • 57
    • 78

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 65
    • 83

    Mostly Sunny

    • 68
    • 86

    Partly Sunny

    • 70
    • 89

    Slight Chance Thunderstorms

Today 2 Aug Wapello

Mostly sunny. Areas of smoke. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 2 Aug Wapello

Areas of smoke in the evening. Partly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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Ottumwa Temperature Statistics

August Temperature

Ottumwa Regional Airport (5.6 miles)

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  • Average August

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Climate (2020–Present)

Ottumwa Regional Airport (5.6 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    62.6 °F
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