Lake Arlington Weather Forecast

    • 68
    • 83

    Chance Thunderstorms

    • 66
    • 79

    Chance Thunderstorms

    • 65
    • 77

    Rain Showers Likely

    • 70
    • 81

    Chance Thunderstorms

    • 65
    • 83

    Chance Rain Showers

    • 62
    • 78

    Partly Sunny

Today 12 Aug Northern Cook

Mostly cloudy. Patchy fog early in the morning. Showers likely with a chance of Thunderstorms in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the lower 80s. Southeast Winds around 5 Mph. Chance of precipitation 70 percent.

Tonight 12 Aug Northern Cook

Mostly cloudy. A slight chance of Showers after midnight. A chance of Showers late. Humid with Lows in the upper 60s. East Winds around 5 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Arlington Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    61.6 °F

  • Average August

    73.1 °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

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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