Ottumwa Junction Weather Forecast

    • 72
    • 95

    Rain Showers Likely

    • 62
    • 86

    Areas Smoke

    • 59
    • 81

    Partly Sunny

    • 62
    • 82

    Chance Rain Showers

    • 63
    • 81

    Slight Chance Rain Showers

    • 67
    • 88

    Mostly Sunny

Today 20 Jul Wapello

Mostly sunny. Highs in the mid 90s. South Winds 5 to 10 Mph. Heat index Values up to 107 this afternoon.

Tonight 20 Jul Wapello

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with Showers likely with a chance of Thunderstorms after midnight. Areas of smoke after midnight. Some Thunderstorms may be severe. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 70 percent. Heat index Values up to 104 early in the evening.

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Ottumwa Junction Temperature Statistics

July Temperature

Ottumwa Regional Airport (3.1 miles)

  • Lowest 13 July, 2026

    62.7 °F

  • Average July

    78.1 °F

  • Highest 18 July, 2026

    93 °F

Climate (2021–2026)

Ottumwa Regional Airport (3.1 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    63.5 °F
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