Lake Arlington Weather Forecast

    • 65
    • 78

    Chance Rain Showers

    • 68
    • 84

    Mostly Cloudy

    • 66
    • 83

    Chance Thunderstorms

    • 68
    • 84

    Rain Showers Likely

    • 67
    • 83

    Rain Showers Likely

    • 64
    • 78

    Chance Thunderstorms

Today 6 Aug Northern Cook

Mostly cloudy. A chance of Showers in the morning. Humid with Highs in the upper 70s. Southeast Winds around 5 Mph. Chance of precipitation 30 percent.

Tonight 6 Aug Northern Cook

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Real-Time

Lake Arlington Temperature Statistics

August Temperature

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

  • Lowest 3 August, 2026

    61 °F

  • Average August

    70.3 °F

  • Highest 3 August, 2026

    80.1 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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