Island Lake Weather Forecast

    • 59
    • 81

    Rain Showers Likely

    • 55
    • 79

    Rain Showers Likely

    • 50
    • 77

    Chance Thunderstorms

    • 46
    • 74

    Mostly Sunny

    • 52
    • 78

    Partly Sunny

    • 58
    • 81

    Chance Rain Showers

    • 55
    • 81

    Chance Rain Showers

Today 20 Aug Northern Marinette County

Mostly cloudy. Nearly steady temperature in the upper 70s. Light and variable wind.

Tonight 20 Aug Northern Marinette County

Warmer. Mostly cloudy. A slight chance of Showers in the Evening, then Showers likely and a slight chance of Thunderstorms after midnight. Lows in the upper 50s. Light and variable wind. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

August Temperature

Menominee - Marinette Twin County Airport (24.9 miles)

  • Lowest 6 August, 2026

    55 °F

  • Average August

    71.2 °F

  • Highest 16 August, 2026

    84 °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

    54.5 °F
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