Rosemont Weather Forecast

    • 41
    • 61

    Mostly Cloudy

    • 39
    • 60

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

    • 32
    • 62

    Mostly Cloudy

    • 33
    • 45

    Mostly Cloudy

    • 37
    • 53

    Mostly Cloudy

    • 43
    • 52

    Mostly Cloudy

Today 19 Mar Central Cook

Mostly sunny. Temperatures in the mid to upper 50s. East Winds around 5 Mph.

Tonight 19 Mar Central Cook

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 40s. Southeast Winds around 5 Mph, becoming southwest after midnight.

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Rosemont Temperature Statistics

March Temperature

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

  • Lowest 16 March, 2026

    19 °F

  • Average March

    41.6 °F

  • Highest 9 March, 2026

    72 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.8 °F
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