Rosemont Weather Forecast

    • 75
    • 92

    Chance Thunderstorms

    • 71
    • 92

    Chance Thunderstorms

    • 65
    • 83

    Mostly Sunny

    • 65
    • 82

    Mostly Sunny

    • 69
    • 86

    Slight Chance Thunderstorms

    • 69
    • 86

    Chance Rain Showers

Today 26 Jul Central Cook

Mostly cloudy in the Morning, then becoming partly cloudy. Humid with Highs in the lower 90s. Southwest Winds around 5 Mph, increasing to around 10 Mph in the afternoon. Heat index Values up to 100.

Tonight 26 Jul Central Cook

Mostly cloudy. A slight chance of Showers and Thunderstorms early in the Evening, then a chance of Showers and Thunderstorms in the late evening and overnight. Humid with Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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Rosemont Temperature Statistics

July Temperature

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

  • Lowest 23 July, 2026

    59 °F

  • Average July

    78.2 °F

  • Highest 14 July, 2026

    96.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62 °F
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