Waukegan Regional Airport Weather Forecast
- 40
- 58
Partly Sunny
- 43
- 56
Partly Sunny
- 44
- 58
Partly Sunny
- 48
- 59
Mostly Cloudy
- 49
- 59
Chance Rain Showers
- 50
- 63
Slight Chance Rain Showers
Today 23 May Lake
Partly cloudy. Highs in the lower 60s Inland, but only in the upper 50s near the lake. North Winds 5 to 10 Mph.
Tonight 23 May Lake
Partly cloudy in the Evening, then clearing. Lows around 40. East Winds 5 to 10 Mph in the Evening, becoming light and variable.
Waukegan Regional Airport Temperature Statistics
May Temperature
Chicago/Waukegan Regional Airport (0 miles)
Lowest 9 May, 2025
36.6 °FAverage May
55 °FHighest 16 May, 2025
86.6 °F
Climate (2020–Present)
Chicago/Waukegan Regional Airport (0 miles)
Average Low 2020–2025
42.3 °FAverage 2020–2025
51 °FAverage High 2020–2025
59.5 °F