Old Mill Creek Weather Forecast

    • 33
    • 40

    Mostly Cloudy

    • 30
    • 42

    Chance Drizzle

    • 36
    • 46

    Partly Sunny

    • 34
    • 48

    Chance Rain

    • 28
    • 41

    Chance Rain

    • 19
    • 34

    Chance Snow

Today 5 Jan Lake

Mostly cloudy. Patchy fog in the morning. Highs around 40. Southwest Winds 5 to 10 Mph.

Tonight 5 Jan Lake

Mostly cloudy. Patchy fog. A slight chance of snow after midnight. A slight chance of drizzle after midnight. A chance of snow late. Near steady temperature in the mid 30s. South Winds around 5 Mph. Chance of precipitation 40 percent.

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Old Mill Creek Temperature Statistics

January Temperature

Chicago/Waukegan Regional Airport (5.6 miles)

  • Lowest 1 January, 2026

    9 °F

  • Average January

    17.4 °F

  • Highest 3 January, 2026

    23 °F

Climate (2021–Present)

Chicago/Waukegan Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.6 °F
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