Lyons Weather Forecast

    • 79
    • 94

    Mostly Sunny

    • 74
    • 97

    Thunderstorms Likely

    • 70
    • 83

    Thunderstorms Likely

    • 73
    • 87

    Chance Thunderstorms

    • 73
    • 91

    Mostly Sunny

    • 73
    • 93

    Slight Chance Thunderstorms

Today 23 Jul Central Cook

Partly cloudy. Hot and humid with Highs in the lower 90s. South Winds 10 to 15 Mph. Heat index Values up to 104.

Tonight 23 Jul Central Cook

Mostly clear. Very warm and humid with Lows in the upper 70s. South Winds 5 to 10 Mph. Heat index Values up to 102 early in the evening.

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Lyons Temperature Statistics

July Temperature

Chicago, Chicago Midway Airport (3.7 miles)

  • Lowest 18 July, 2025

    61 °F

  • Average July

    78.3 °F

  • Highest 5 July, 2025

    93.9 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (3.7 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    54.2 °F

  • Average High 2020–2025

    61.8 °F
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