Portage Park Weather Forecast

    • 63
    • 86

    Partly Sunny

    • 57
    • 73

    Chance Rain Showers

    • 67
    • 73

    Chance Rain Showers

    • 65
    • 83

    Rain Showers

    • 65
    • 76

    Rain Showers Likely

    • 61
    • 76

    Slight Chance Thunderstorms

Today 12 Sep Central Cook

Partly cloudy. Highs in the mid 80s. West Winds around 10 Mph.

Tonight 12 Sep Central Cook

Partly cloudy in the Evening, then clearing. Lows in the mid 60s. Northwest Winds 5 to 10 Mph.

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Portage Park Temperature Statistics

September Temperature

Chicago, Chicago-O'Hare International Airport (7.5 miles)

  • Lowest 7 September, 2026

    64.7 °F

  • Average September

    79 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago, Chicago-O'Hare International Airport (7.5 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61.9 °F
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