Ottumwa Junction Weather Forecast

    • 77
    • 95

    Partly Sunny

    • 78
    • 95

    Mostly Sunny

    • 76
    • 96

    Chance Thunderstorms

    • 74
    • 94

    Mostly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 71
    • 91

    Partly Sunny

Today 31 Aug Wapello

Mostly sunny. Hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Gusts up to 30 Mph this morning. Heat index Values up to 103 this afternoon.

Tonight 31 Aug Wapello

Partly cloudy. Humid with Lows in the upper 70s. South Winds 5 to 10 Mph. Heat index Values up to 101 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ottumwa Junction Temperature Statistics

August Temperature

Ottumwa Regional Airport (3.1 miles)

  • Lowest 3 August, 2026

    58.6 °F

  • Average August

    75.8 °F

  • Highest 11 August, 2026

    90.6 °F

Climate (2021–2026)

Ottumwa Regional Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.3 °F
Get WillyWeather+ to remove ads