Lake Arlington Weather Forecast

    • 67
    • 77

    Chance Rain Showers

    • 49
    • 78

    Chance Rain Showers

    • 43
    • 57

    Partly Sunny

    • 47
    • 60

    Mostly Cloudy

    • 51
    • 64

    Chance Rain Showers

    • 54
    • 71

    Slight Chance Rain Showers

    • 58
    • 77

    Slight Chance Thunderstorms

Today 18 May Northern Cook

Cloudy. A slight chance of Showers and Thunderstorms early in the afternoon. Breezy. Highs in the mid 80s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 70 percent.

Tonight 18 May Northern Cook

Cloudy. A chance of Showers and a slight chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Arlington Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    53.6 °F

  • Highest 16 May, 2026

    82.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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