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.
Old Mill Creek Temperature Statistics
July Temperature
Chicago/Waukegan Regional Airport (5.6 miles)
Lowest 2 July, 2025
68 °FAverage July
77.9 °FHighest 2 July, 2025
89.1 °F
Climate (2020–Present)
Chicago/Waukegan Regional Airport (5.6 miles)
Average Low 2020–2025
42.2 °FAverage 2020–2025
51 °FAverage High 2020–2025
59.5 °F