Historical weather data, all-time temperature records, and monthly climate averages for Bellwood, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Bellwood runs cool, with an average high of just 53° and a low dipping to 34°. But the date has seen wild swings over 67 years of records — from a balmy 85° in 1988 to a bitter 18° in 1975. There's a 37% chance of rain today, though snow is unlikely at just 3%.
Bellwood's weather has real teeth at both ends of the thermometer. The hottest day on record hit 104° on June 20, 1988, while the coldest bottomed out at -27° on January 20, 1985 — a 131-degree spread between extremes. Summer storms can be serious too, with a single day in July 2011 dropping 6.86 inches of rain.
Bellwood follows a classic upper Midwest pattern: cold winters with January highs averaging just 29°, and warm but manageable summers peaking around 84° in mid-July. The wettest stretch also falls in that July window, so pack accordingly if you're visiting mid-summer. Spring and fall offer the most comfortable conditions, with May and September both averaging highs in the 70s.