Arlington Heights Weather Forecast

    • 42
    • 64

    Increasing Clouds

    • 41
    • 57

    Mostly Sunny

    • 50
    • 74

    Chance Rain Showers

    • 44
    • 62

    Partly Sunny

    • 50
    • 67

    Mostly Cloudy

    • 57
    • 76

    Slight Chance Rain Showers

Today 10 May Northern Cook

Sunny in the Morning, then becoming partly cloudy. Highs in the lower 60s Inland, but only in the mid 50s near the lake. North Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph with Gusts up to 25 Mph inland and east 10 to 15 Mph near the lake in the afternoon.

Tonight 10 May Northern Cook

Mostly cloudy in the Evening, then clearing. Lows in the lower 40s. Northeast Winds 5 to 10 Mph.

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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

    50.9 °F

  • Highest 4 May, 2026

    81.6 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (4.3 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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