Lake Forest Weather Forecast

    • 74
    • 87

    Mostly Sunny

    • 74
    • 88

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

    • 68
    • 84

    Mostly Sunny

    • 66
    • 83

    Mostly Sunny

    • 65
    • 81

    Slight Chance Thunderstorms

    • 61
    • 70

    Chance Rain Showers

Today 21 Sep Lake

Mostly clear. Lows in the lower 70s. Southeast Winds 5 to 10 Mph in the evening becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

  • Lowest 10 September, 2017

    48 °F
  • Average September

    65.6 °F
  • Highest 16 September, 2017

    89.1 °F

Climate (2010–Present)

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

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  • Average Low 2010–Present

    40 °F
  • Average 2010–Present

    49 °F
  • Average High 2010–Present

    56.7 °F
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