Historical weather data, all-time temperature records, and monthly climate averages for Lisle, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Lisle runs mild but unpredictable, with an average high of 55° and low of 33°. The date has swung from a balmy 76° back in 2005 to a frigid 20° low in 2016, so keep a layer handy. There's about a 39% chance of rain, though snow is essentially off the table.
Lisle's weather has real teeth on both ends — the thermometer has touched 100° in July 2005 and bottomed out at a brutal -29° in January 2019, a swing of 129 degrees. A single storm dropped 6.02 inches of rain on September 13, 2008, which still stands as the all-time wettest day in nearly three decades of records.
Summer is the sweet spot, with highs peaking around 84–85° in mid-July, while mid-January is the one to avoid at a frigid 28° average high. If you're trying to dodge the rain, steer clear of early May — the week of May 7–13 is the wettest of the year, averaging 1.35 inches.