Rosemont Weather Forecast

    • 45
    • 56

    Mostly Sunny

    • 46
    • 57

    Chance Rain

    • 44
    • 55

    Chance Rain

    • 41
    • 54

    Slight Chance Rain Showers

    • 38
    • 54

    Slight Chance Rain Showers

    • 39
    • 52

    Mostly Cloudy

Today 27 Oct Central Cook

Mostly sunny. Highs in the upper 50s. East Winds 10 to 15 Mph.

Tonight 27 Oct Central Cook

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. East Winds 10 to 15 Mph.

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Rosemont Temperature Statistics

October Temperature

Chicago, Chicago-O'Hare International Airport (1.2 miles)

  • Lowest 24 October, 2025

    35.1 °F

  • Average October

    60.6 °F

  • Highest 3 October, 2025

    88 °F

Climate (2020–Present)

Chicago, Chicago-O'Hare International Airport (1.2 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.8 °F
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