Ottumwa Weather Forecast

    • 54
    • 75

    Areas Smoke

    • 59
    • 85

    Mostly Sunny

    • 62
    • 93

    Mostly Sunny

    • 63
    • 95

    Mostly Sunny

    • 63
    • 98

    Hot

    • 63
    • 94

    Chance Thunderstorms

Today 4 Aug Haakon

Mostly sunny. A slight chance of Showers this morning. Areas of smoke this morning. Highs in the mid 70s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 4 Aug Haakon

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ottumwa Temperature Statistics

August Temperature

Philip, Philip Airport (17.4 miles)

  • Lowest 1 August, 2026

    55.7 °F

  • Average August

    83.3 °F

  • Highest 2 August, 2026

    109 °F

Climate (2021–2026)

Philip, Philip Airport (17.4 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    64 °F
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