Island Lake Weather Forecast

    • 49
    • 74

    Decreasing Clouds

    • 49
    • 75

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 64
    • 86

    Chance Thunderstorms

    • 61
    • 87

    Chance Rain Showers

    • 58
    • 83

    Slight Chance Rain Showers

Today 21 Jul Northern Marinette County

Mostly cloudy. Isolated Showers. Temperatures in the mid to upper 60s. Northwest wind 10 to 15 Mph.

Tonight 21 Jul Northern Marinette County

Cooler. Mostly cloudy in the evening then clearing. Lows in the upper 40s. North wind 10 to 15 Mph shifting to the northwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

July Temperature

Menominee - Marinette Twin County Airport (24.9 miles)

  • Lowest 6 July, 2026

    55.9 °F

  • Average July

    74.3 °F

  • Highest 13 July, 2026

    98.1 °F

Climate (2021–2026)

Menominee - Marinette Twin County Airport (24.9 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
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