Historical weather data, all-time temperature records, and monthly climate averages for Worth, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Worth runs mild but unpredictable — the average high is 53° with a low of 36°, yet this date has swung anywhere from 80° (1929) to a brutal 16° low (1975). Nearly a coin flip on precipitation at 47%, though snow is mostly off the table at just a 5% chance.
Worth's weather has real range — 132 degrees separating its all-time extremes of 107° in June 1934 and -25° in January 1985. Single-day rainfall hit 6.16" in July 1957, and a January 1999 storm buried the area under 17.6" of snow in one shot.
Summer is the sweet spot, with highs peaking around 85° the week of July 9–15 and the wettest stretch arriving shortly after in late July. Winters are cold and real — January highs average just 31–32°, so plan accordingly if you're visiting between December and February. Spring and fall offer the smoothest transitions, with April climbing to 59° and October holding at a comfortable 64°.