Raven Glen Forest Preserve Weather Forecast

    • 41
    • 67

    Increasing Clouds

    • 45
    • 71

    Partly Sunny

    • 48
    • 69

    Mostly Sunny

    • 48
    • 66

    Partly Sunny

    • 51
    • 67

    Mostly Cloudy

    • 48
    • 69

    Mostly Cloudy

Today 20 Oct Lake

Partly cloudy in the Morning, then becoming sunny. Widespread dense fog early in the morning. Highs in the mid 60s. East Winds 5 to 10 Mph.

Tonight 20 Oct Lake

Partly cloudy. Areas of dense fog late. Lows in the lower 40s. East Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Raven Glen Forest Preserve Temperature Statistics

October Temperature

Chicago/Waukegan Regional Airport (8.1 miles)

  • Lowest 17 October, 2026

    36 °F

  • Average October

    59.4 °F

  • Highest 12 October, 2026

    86.6 °F

Climate (2021–2026)

Chicago/Waukegan Regional Airport (8.1 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.7 °F
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