Lake Arlington Weather Forecast

    • 42
    • 54

    Rain Showers Likely

    • 38
    • 52

    Mostly Cloudy

    • 34
    • 53

    Mostly Sunny

    • 39
    • 56

    Partly Sunny

    • 45
    • 57

    Chance Rain Showers

    • 49
    • 59

    Slight Chance Rain Showers

Today 21 Oct Northern Cook

Mostly cloudy. A chance of Showers early in the afternoon. Showers likely late. Windy. Highs in the mid 50s. West Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of precipitation 60 percent.

Tonight 21 Oct Northern Cook

Mostly cloudy. Showers likely early in the Evening, then a slight chance of Showers late in the evening. Breezy with Lows in the lower 40s. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of precipitation 60 percent.

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Lake Arlington Temperature Statistics

October Temperature

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

  • Lowest 9 October, 2025

    43 °F
  • Average October

    63 °F
  • Highest 3 October, 2025

    89.1 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    44.3 °F
  • Average 2020–2025

    53.1 °F
  • Average High 2020–2025

    61.6 °F
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