Old Mill Creek Weather Forecast

    • 70
    • 86

    Smoke

    • 72
    • 90

    Chance Thunderstorms

    • 65
    • 89

    Chance Thunderstorms

    • 66
    • 82

    Partly Sunny

    • 66
    • 87

    Chance Thunderstorms

    • 60
    • 83

    Partly Sunny

Today 16 Jul Lake

Mostly cloudy. Areas of smoke. Highs in the upper 80s Inland, but only around 80 near the lake. East Winds 5 to 10 Mph.

Tonight 16 Jul Lake

Mostly cloudy. Smoke. Near steady temperature in the lower 70s. North Winds around 5 Mph.

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Old Mill Creek Temperature Statistics

July Temperature

Chicago/Waukegan Regional Airport (5.6 miles)

  • Lowest 7 July, 2026

    58.6 °F

  • Average July

    74.8 °F

  • Highest 1 July, 2026

    93.7 °F

Climate (2021–2026)

Chicago/Waukegan Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.8 °F
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