Lake Bluff Weather Forecast

    • 21
    • 23

    Increasing Clouds

    • 16
    • 39

    Partly Sunny

    • 23
    • 28

    Partly Sunny

    • 36
    • 39

    Mostly Cloudy

    • 34
    • 44

    Mostly Cloudy

    • 41
    • 47

    Chance Rain

Today 19 Dec Lake

Mostly cloudy in the morning then clearing. 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 Lake

Mostly cloudy in the Evening, then becoming partly cloudy. Lows around 20. Temperature rising into the mid 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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Lake Bluff Temperature Statistics

December Temperature

Chicago/Waukegan Regional Airport (9.9 miles)

  • Lowest 14 December, 2025

    -4 °F

  • Average December

    21 °F

  • Highest 16 December, 2025

    39 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    59.6 °F
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