Northbrook Weather Forecast

    • 59
    • 66

    Increasing Clouds

    • 55
    • 66

    Mostly Cloudy

    • 55
    • 66

    Partly Sunny

    • 55
    • 67

    Partly Sunny

    • 56
    • 68

    Partly Sunny

    • 61
    • 71

    Rain Showers Likely

Today 24 Sep Northern Cook

Partly cloudy. Highs in the upper 60s. East Winds 5 to 10 Mph.

Tonight 24 Sep Northern Cook

Mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Northbrook Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

  • Lowest 14 September, 2026

    50.6 °F

  • Average September

    71.6 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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