Arlington Heights Weather Forecast

    • 67
    • 83

    Becoming Sunny

    • 68
    • 86

    Sunny

    • 75
    • 92

    Sunny

    • 75
    • 96

    Sunny

    • 72
    • 95

    Mostly Sunny

    • 72
    • 91

    Partly Sunny

    • 71
    • 90

    Slight Chance Thunderstorms

Today 11 Jul Northern Cook

Mostly sunny. Temperatures in the lower 80s. Northeast Winds around 10 Mph.

Tonight 11 Jul Northern Cook

Clear. Lows in the upper 60s. Northeast Winds 5 to 10 Mph.

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Arlington Heights Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2026

    62.7 °F

  • Average July

    77.7 °F

  • Highest 1 July, 2026

    95.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.6 °F
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