Iowa Lake Weather Forecast

    • 68
    • 85

    Rain Showers

    • 66
    • 84

    Chance Thunderstorms

    • 71
    • 84

    Chance Thunderstorms

    • 60
    • 87

    Chance Rain Showers

    • 57
    • 80

    Partly Sunny

    • 60
    • 81

    Slight Chance Thunderstorms

Today 5 Sep Nobles

Showers with a chance of Thunderstorms early this Morning, then a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 80s. Northeast Winds 5 to 10 Mph, becoming southeast this afternoon. Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 5 Sep Nobles

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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Iowa Lake Temperature Statistics

September Temperature

Worthington, Worthington Municipal Airport (11.8 miles)

  • Lowest 3 September, 2026

    78.1 °F

  • Average September

    83.1 °F

  • Highest 3 September, 2026

    89.1 °F

Climate (2021–2026)

Worthington, Worthington Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57.4 °F
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