Lake Forest Weather Forecast

    • 59
    • 73

    Mostly Sunny

    • 62
    • 79

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 69
    • 83

    Partly Sunny

    • 72
    • 92

    Partly Sunny

    • 69
    • 88

    Slight Chance Thunderstorms

Today 22 Jul Lake

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the mid 70s. North Winds 5 to 10 Mph.

Tonight 22 Jul Lake

Partly cloudy in the Evening, then becoming clear. Lows in the mid 50s. North Winds around 5 Mph, becoming northwest after midnight.

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  • Temperature Real-Time

Lake Forest Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2026

    62.7 °F

  • Average July

    78.1 °F

  • Highest 14 July, 2026

    97.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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