Old Mill Creek Weather Forecast

    • 62
    • 80

    Slight Chance Thunderstorms

    • 62
    • 77

    Partly Sunny

    • 67
    • 84

    Chance Thunderstorms

    • 66
    • 82

    Slight Chance Thunderstorms

    • 66
    • 81

    Mostly Sunny

    • 69
    • 86

    Chance Thunderstorms

    • 66
    • 84

    Chance Rain Showers

Today 6 Jul Lake

Cloudy. A chance of Showers late in the morning. A chance of Thunderstorms. Showers likely in the afternoon. Highs around 80. Temperature falling into the lower 70s in the afternoon. West Winds around 10 Mph, becoming north 10 to 15 Mph with Gusts to 20 Mph by mid afternoon. Chance of precipitation 60 percent.

Tonight 6 Jul Lake

Mostly cloudy. A slight chance of Showers and Thunderstorms early in the evening. Lows in the lower 60s. North Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Mill Creek Temperature Statistics

July Temperature

Chicago/Waukegan Regional Airport (5.6 miles)

  • Lowest 2 July, 2025

    68 °F
  • Average July

    77.9 °F
  • Highest 2 July, 2025

    89.1 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (5.6 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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