Old Mill Creek Weather Forecast

    • 33
    • 49

    Becoming Sunny

    • 30
    • 49

    Decreasing Clouds

    • 40
    • 49

    Partly Sunny

    • 47
    • 71

    Partly Sunny

    • 48
    • 66

    Partly Sunny

    • 59
    • 77

    Chance Rain Showers

    • 43
    • 70

    Chance Rain Showers

Today 18 Apr Lake

Mostly cloudy in the Morning, then becoming partly cloudy. Breezy. Highs in the upper 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 18 Apr Lake

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Mill Creek Temperature Statistics

April Temperature

Chicago/Waukegan Regional Airport (5.6 miles)

  • Lowest 7 April, 2026

    26.7 °F

  • Average April

    50.5 °F

  • Highest 12 April, 2026

    81.6 °F

Climate (2021–Present)

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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