Mild
Average highs are around 25°C, so days are mild rather than hot.
June verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 10h per day, so bright days are a strong part of the month. Rainfall averages 94mm, so some wet days are possible.

Monthly averages
Temp
25°C
Rain
94mm
Sun
10h
Sea
13°C
Weather score
60
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 94mm, so some wet days are possible.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Compare Waukegan, Illinois, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
June25°C average high
June is one of Waukegan's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
June94mm average rain
June is one of Waukegan's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February, October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
June10 hours average sun
June is one of Waukegan's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
June13°C average sea
June is close to Waukegan's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
June60 weather score
June scores above Waukegan's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.