Island Lake Weather Forecast

    • 45
    • 75

    Decreasing Clouds

    • 21
    • 54

    Breezy

    • 28
    • 46

    Mostly Sunny

    • 37
    • 61

    Partly Sunny

    • 43
    • 70

    Partly Sunny

    • 45
    • 73

    Mostly Cloudy

Today 25 Mar McCook

Mostly sunny. Warmer with Highs in the upper 70s. South Winds 5 to 10 Mph, becoming west in the afternoon.

Tonight 25 Mar McCook

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. South Winds around 5 Mph, becoming southeast 10 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

March Temperature

Madison Municipal Airport (14.9 miles)

  • Lowest 16 March, 2026

    -0.4 °F

  • Average March

    36.4 °F

  • Highest 21 March, 2026

    80.6 °F

Climate (2021–Present)

Madison Municipal Airport (14.9 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.2 °F
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