Rosemont Weather Forecast

    • 35
    • 56

    Rain Showers

    • 27
    • 37

    Chance Rain/Snow

    • 26
    • 38

    Chance Snow

    • 21
    • 34

    Slight Chance Snow

    • 21
    • 32

    Partly Sunny

    • 34
    • 41

    Mostly Cloudy

    • 27
    • 47

    Chance Rain

Today 19 Feb Central Cook

Mostly cloudy. A slight chance of Showers early in the afternoon. Showers likely and a slight chance of Thunderstorms late. Highs in the lower 50s Inland, but only in the mid 40s near the lake. Northeast Winds 5 to 10 Mph. Chance of precipitation 60 percent.

Tonight 19 Feb Central Cook

Cloudy. Showers and a chance of Thunderstorms in the Evening, then a chance of Showers and a slight chance of Thunderstorms after midnight. Breezy. Lows in the mid 30s. East Winds around 10 Mph, increasing to south 15 to 20 Mph with Gusts up to 35 Mph after midnight. Chance of precipitation 80 percent.

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Rosemont Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    7.6 °F

  • Average February

    31.9 °F

  • Highest 16 February, 2026

    64.9 °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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