Mallard Lake County Forest Preserve Weather Forecast

    • 44
    • 63

    Decreasing Clouds

    • 47
    • 66

    Mostly Sunny

    • 54
    • 68

    Partly Sunny

    • 52
    • 75

    Partly Sunny

    • 49
    • 68

    Partly Sunny

    • 48
    • 65

    Partly Sunny

Today 10 Oct DuPage

Mostly cloudy. Isolated Showers or Sprinkles. Highs in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 10 Oct DuPage

Partly cloudy in the Evening, then clearing. A slight chance of Showers early in the evening. Lows in the mid 40s. West Winds 5 to 10 Mph, becoming north after midnight. Chance of precipitation 20 percent.

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  • Temperature Real-Time

Mallard Lake County Forest Preserve Temperature Statistics

October Temperature

Chicago / West Chicago, Dupage Airport (6.8 miles)

  • Lowest 7 October, 2025

    50 °F

  • Average October

    69.5 °F

  • Highest 3 October, 2025

    89.1 °F

Climate (2020–Present)

Chicago / West Chicago, Dupage Airport (6.8 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.4 °F
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