Westmont Weather Forecast

    • 20
    • 22

    Decreasing Clouds

    • 17
    • 40

    Partly Sunny

    • 22
    • 28

    Partly Sunny

    • 35
    • 38

    Mostly Cloudy

    • 33
    • 46

    Mostly Cloudy

    • 43
    • 49

    Mostly Cloudy

Today 19 Dec DuPage

Mostly cloudy in the Morning, then becoming partly cloudy. Blustery. Highs in the lower 20s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming west 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 19 Dec DuPage

Mostly cloudy in the Evening, then becoming partly cloudy. Lows around 20. Temperature rising into the upper 20s after midnight. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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Westmont Temperature Statistics

December Temperature

Chicago, Chicago Midway Airport (11.2 miles)

  • Lowest 14 December, 2025

    -0.9 °F

  • Average December

    23.6 °F

  • Highest 17 December, 2025

    43 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (11.2 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    61.8 °F
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