Arlington Heights Weather Forecast

    • 55
    • 72

    Decreasing Clouds

    • 56
    • 75

    Mostly Cloudy

    • 56
    • 77

    Partly Sunny

    • 56
    • 77

    Sunny

    • 62
    • 83

    Mostly Sunny

    • 68
    • 89

    Chance Rain Showers

Today 30 May Northern Cook

Mostly cloudy. Temperatures in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 30 May Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northeast Winds 10 to 15 Mph, becoming southeast 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arlington Heights Temperature Statistics

May Temperature

Chicago / Wheeling, Pal-Waukee Airport (4.3 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    58.3 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (4.3 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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