Island Lake Weather Forecast

    • 65
    • 80

    Chance Rain Showers

    • 66
    • 83

    Rain Showers Likely

    • 62
    • 77

    Chance Rain Showers

    • 67
    • 80

    Chance Rain Showers

    • 70
    • 86

    Chance Thunderstorms

    • 72
    • 90

    Chance Thunderstorms

Today 18 Jul Lake

Decreasing Clouds. Highs in the upper 70s Inland, but only in the lower 70s near the lake. East Winds 5 to 10 Mph.

Tonight 18 Jul Lake

Partly cloudy through the early Overnight, then becoming mostly cloudy. A slight chance of Showers after midnight. A slight chance of Thunderstorms after midnight. A chance of Showers late. Lows in the upper 60s. Southeast Winds around 5 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

July Temperature

Chicago / Wheeling, Pal-Waukee Airport (18 miles)

  • Lowest 10 July, 2025

    62.7 °F

  • Average July

    77.6 °F

  • Highest 5 July, 2025

    93.7 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (18 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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