Zion Weather Forecast

    • 73
    • 81

    Partly Sunny

    • 76
    • 93

    Mostly Sunny

    • 72
    • 94

    Chance Thunderstorms

    • 70
    • 82

    Chance Thunderstorms

    • 70
    • 82

    Chance Thunderstorms

    • 71
    • 82

    Partly Sunny

Today 22 Jul Lake

Partly cloudy. Very warm and more humid with Highs in the mid 80s Inland, but only in the lower 80s near the lake. South Winds 5 to 10 Mph, increasing to southeast 10 to 15 Mph in the afternoon.

Tonight 22 Jul Lake

Partly cloudy. Lows in the lower 70s. South Winds around 10 Mph.

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Zion Temperature Statistics

July Temperature

Chicago/Waukegan Regional Airport (1.9 miles)

  • Lowest 17 July, 2025

    55.7 °F

  • Average July

    75 °F

  • Highest 5 July, 2025

    93.7 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (1.9 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.5 °F
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