Iowa Lake State Game Management Area Weather Forecast

    • 67
    • 89

    Thunderstorms Likely

    • 64
    • 81

    Slight Chance Thunderstorms

    • 67
    • 83

    Slight Chance Thunderstorms

    • 69
    • 86

    Mostly Sunny

    • 71
    • 90

    Slight Chance Thunderstorms

    • 67
    • 89

    Slight Chance Thunderstorms

Today 23 Jul Osceola

Mostly sunny. Numerous Showers and scattered Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe this afternoon. Highs around 90. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent. Heat index Values up to 102 this afternoon.

Tonight 23 Jul Osceola

Showers and Thunderstorms likely in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Humid with Lows in the upper 60s. North Winds 10 to 15 Mph, becoming west around 5 Mph after midnight. Chance of rain 70 percent. Heat index Values in the upper 90s early in the evening.

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Iowa Lake State Game Management Area Temperature Statistics

July Temperature

Worthington, Worthington Municipal Airport (11.8 miles)

  • Lowest 17 July, 2025

    55.7 °F
  • Average July

    72.9 °F
  • Highest 3 July, 2025

    91.7 °F

Climate (2020–Present)

Worthington, Worthington Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    36.9 °F
  • Average 2020–2025

    46.9 °F
  • Average High 2020–2025

    56.9 °F
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