Lake Forest, IL is located in the northern part of the state and experiences four distinct seasons. During the summer months, temperatures usually reach into the 80s with high humidity levels leading to hot and humid days. Winters are typically cold and snowy with temperatures dropping to below freezing for extended periods of time. Spring brings moderate temperatures with plenty of rain showers while autumn sees a mix of mild weather and cool breezes. Overall, Lake Forest enjoys a temperate climate that makes it an enjoyable place to live year-round.
Lake Forest (zip 60045), Illinois gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lake Forest (zip 60045) averages 38 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 189 sunny days per year in Lake Forest (zip 60045). The US average is 205 sunny days.
Lake Forest (zip 60045) gets some kind of precipitation, on average, 121 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 82 degrees
Winter Low: the January low is 16
Rain: averages 35 inches of rain a year
Snow: averages 38 inches of snow a year