Northbrook Weather Forecast

    • 53
    • 73

    Mostly Sunny

    • 60
    • 77

    Mostly Cloudy

    • 62
    • 78

    Partly Sunny

    • 61
    • 77

    Mostly Sunny

    • 65
    • 80

    Partly Sunny

    • 65
    • 83

    Slight Chance Rain Showers

Today 8 Sep Northern Cook

Sunny. Highs in the lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 8 Sep Northern Cook

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. South Winds 5 to 10 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 4 September, 2025

    48 °F

  • Average September

    63 °F

  • Highest 2 September, 2025

    78.1 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.4 °F
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