Round Lake Heights Weather Forecast

    • 65
    • 85

    Mostly Sunny

    • 71
    • 89

    Partly Sunny

    • 69
    • 88

    Thunderstorms Likely

    • 61
    • 76

    Chance Thunderstorms

    • 64
    • 76

    Chance Thunderstorms

    • 71
    • 81

    Chance Thunderstorms

    • 65
    • 83

    Chance Thunderstorms

Today 14 Jul Lake

Sunny. Nearly steady Temperatures in the lower 80s. South Winds around 5 Mph.

Tonight 14 Jul Lake

Clear. Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Round Lake Heights Temperature Statistics

July Temperature

Chicago/Waukegan Regional Airport (12.4 miles)

  • Lowest 10 July, 2025

    60.7 °F

  • Average July

    76 °F

  • Highest 5 July, 2025

    93.7 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (12.4 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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