Historical weather data, all-time temperature records, and monthly climate averages for Schiller Park, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Schiller Park sits in that classic Chicago-area spring purgatory — historically averaging a high of just 53° and a low of 34°, with nearly a 1-in-3 chance of rain. The date's range tells the whole story: it's hit 85° (1988) and dropped to 18° (1975), so pack layers and low expectations.
Schiller Park deals in extremes. The thermometer has swung from a brutal -27° in January 1985 to a scorching 104° in June 1988 — a 131-degree spread that captures the full fury of the Chicago climate. A single July day in 2011 dumped 6.86 inches of rain, and a January storm in 1999 buried the area under 18.6 inches of snow.
July is the sweet spot, with the warmest week of the year averaging a high of 85° — also, not coincidentally, the wettest. If you're visiting for the weather, aim for late summer; if you're avoiding it, steer clear of mid-January, when highs average a frigid 29°. Spring and fall are brief but pleasant transitions, with April climbing from the 40s toward the 70s of May.