Portage Park Weather Forecast

    • 54
    • 65

    Chance Rain Showers

    • 59
    • 71

    Chance Rain Showers

    • 63
    • 83

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 61
    • 79

    Mostly Cloudy

    • 60
    • 75

    Partly Sunny

Today 23 May Central Cook

Mostly cloudy. A slight chance of Showers early in the morning. Highs in the upper 60s Inland, but only in the lower 60s near the lake. Northeast Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 23 May Central Cook

Mostly cloudy. A slight chance of Showers late in the evening. A slight chance of Thunderstorms in the late evening and overnight. A chance of Showers after midnight. Lows in the mid 50s. East Winds 5 to 10 Mph, becoming southeast after midnight. Chance of precipitation 30 percent.

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Portage Park Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2026

    32.6 °F

  • Average May

    58.1 °F

  • Highest 17 May, 2026

    87.7 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.9 °F
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