Merrionette Park Weather Forecast

    • 67
    • 89

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 60
    • 83

    Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

    • 48
    • 66

    Mostly Sunny

    • 52
    • 68

    Mostly Sunny

Today 3 Oct Central Cook

Mostly sunny. Near record breaking warmth likely. Highs in the upper 80s Inland, but only in the mid 80s near the lake. Southwest Winds around 5 Mph.

Tonight 3 Oct Central Cook

Mostly clear. Lows in the upper 60s. South Winds around 5 Mph.

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Merrionette Park Temperature Statistics

October Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest 1 October, 2025

    64.9 °F

  • Average October

    71 °F

  • Highest 1 October, 2025

    75.9 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (7.5 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    61.9 °F
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