Ottumwa Lake Weather Forecast

    • 45
    • 69

    Areas Smoke

    • 43
    • 81

    Areas Smoke

    • 37
    • 65

    Mostly Sunny

    • 40
    • 67

    Mostly Sunny

    • 54
    • 77

    Partly Sunny

    • 54
    • 84

    Partly Sunny

    • 57
    • 85

    Partly Sunny

Today 3 Sep Haakon

Partly cloudy. Areas of smoke. Near steady temperature in the mid 60s. North Winds 10 to 15 Mph.

Tonight 3 Sep Haakon

Partly cloudy. Areas of smoke. Lows in the mid 40s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ottumwa Lake Temperature Statistics

September Temperature

Philip, Philip Airport (18 miles)

  • Lowest 1 September, 2025

    57.9 °F

  • Average September

    68.3 °F

  • Highest 1 September, 2025

    81 °F

Climate (2020–Present)

Philip, Philip Airport (18 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    63.2 °F
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