Cary Weather Forecast

    • 56
    • 83

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

    • 61
    • 85

    Partly Sunny

    • 61
    • 81

    Chance Rain Showers

    • 60
    • 78

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 16 Sep McHenry

Mostly sunny. Patchy fog early in the morning. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 16 Sep McHenry

Mostly clear. Lows in the mid 50s. East Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Cary Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (18 miles)

  • Lowest 7 September, 2025

    46.9 °F

  • Average September

    64.5 °F

  • Highest 12 September, 2025

    84.9 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (18 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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