Island Lake Weather Forecast

    • 66
    • 86

    Chance Thunderstorms

    • 63
    • 84

    Partly Sunny

    • 64
    • 86

    Mostly Sunny

    • 66
    • 87

    Partly Sunny

    • 67
    • 87

    Chance Rain Showers

    • 67
    • 88

    Chance Thunderstorms

Today 3 Jul McCook

Partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 3 Jul McCook

Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the mid 60s. Southeast Winds 10 to 15 Mph, becoming northeast 5 to 10 Mph after midnight. Chance of rain 50 percent.

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Island Lake Temperature Statistics

July Temperature

Madison Municipal Airport (14.9 miles)

  • Lowest 1 July, 2026

    64.4 °F

  • Average July

    72 °F

  • Highest 1 July, 2026

    82.4 °F

Climate (2021–2026)

Madison Municipal Airport (14.9 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.2 °F
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