Historical weather data, all-time temperature records, and monthly climate averages for Calumet City, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Calumet City runs chilly, with an average high of 54° and an average low of 34° across 72 years of records. The date has seen a 58-degree swing in extremes — from a balmy 76° in 2005 to a bitter 18° low in 1995. There's about a one-in-three chance of rain, but snow is off the table.
Calumet City weather doesn't mess around at the extremes — the thermometer has swung from a brutal -27° in January 1985 to a scorching 103° in August 1988, a range of 130 degrees. A single July day in 1996 dumped 6.55 inches of rain, and a February 2011 snowstorm buried the area under 19 inches in one shot.
Summer is the main event here, with mid-July averaging a high of 85° and also bringing the wettest conditions of the year at over an inch of precipitation per week. Winters are genuinely cold — the coolest week of January averages just 29°, and monthly highs stay below freezing through February. Spring and fall offer a quick but pleasant shoulder season in the 46°–64° range.