North Chicago Weather Forecast

    • 64
    • 77

    Partly Sunny

    • 63
    • 74

    Mostly Sunny

    • 66
    • 76

    Partly Sunny

    • 71
    • 82

    Mostly Cloudy

    • 66
    • 85

    Slight Chance Thunderstorms

    • 62
    • 76

    Slight Chance Rain Showers

Today 5 Sep Lake

Mostly cloudy. Patchy fog early in the morning. Humid with Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 5 Sep Lake

Partly cloudy. A slight chance of Showers and Thunderstorms. Patchy fog late. Near steady temperature in the lower 70s. North Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

North Chicago Temperature Statistics

September Temperature

Chicago/Waukegan Regional Airport (6.8 miles)

  • Lowest 1 September, 2026

    70.6 °F

  • Average September

    81.9 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Chicago/Waukegan Regional Airport (6.8 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.7 °F
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