Island Lake Weather Forecast

    • 37
    • 66

    Becoming Sunny

    • 55
    • 79

    Partly Sunny

    • 44
    • 75

    Breezy

    • 51
    • 75

    Breezy

    • 56
    • 85

    Breezy

    • 56
    • 87

    Partly Sunny

Today 10 May McCook

Sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 10 May McCook

Mostly clear. Lows in the upper 30s. North Winds 10 to 15 Mph, becoming east after midnight.

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  • Temperature Real-Time

Island Lake Temperature Statistics

May Temperature

Madison Municipal Airport (14.9 miles)

  • Lowest 6 May, 2026

    24.8 °F

  • Average May

    48.9 °F

  • Highest 8 May, 2026

    71.6 °F

Climate (2021–Present)

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

    58.3 °F
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