Lake Arlington Weather Forecast

    • 58
    • 77

    Mostly Sunny

    • 64
    • 80

    Partly Sunny

    • 65
    • 83

    Chance Thunderstorms

    • 62
    • 82

    Mostly Sunny

    • 63
    • 80

    Partly Sunny

    • 67
    • 82

    Mostly Cloudy

Today 24 Aug Northern Cook

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 24 Aug Northern Cook

Mostly clear. Lows in the upper 50s. East Winds around 5 Mph, becoming south after midnight.

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Lake Arlington Temperature Statistics

August Temperature

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

  • Lowest 20 August, 2026

    60.7 °F

  • Average August

    73.9 °F

  • Highest 7 August, 2026

    87.7 °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

    52.8 °F

  • Average High 2021–2026

    61.6 °F
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