Old Mill Creek Weather Forecast

    • 44
    • 64

    Partly Sunny

    • 43
    • 64

    Partly Sunny

    • 44
    • 68

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

    • 58
    • 78

    Mostly Cloudy

    • 58
    • 78

    Partly Sunny

    • 56
    • 72

    Partly Sunny

Today 5 Sep Lake

Increasing cloudiness. Breezy. Highs in the lower 60s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 5 Sep Lake

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 40s. West Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Mill Creek Temperature Statistics

September Temperature

Chicago/Waukegan Regional Airport (5.6 miles)

  • Lowest 1 September, 2025

    53.1 °F

  • Average September

    65.4 °F

  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.6 °F
Get WillyWeather+ to remove ads