Historical weather data, all-time temperature records, and monthly climate averages for Morton Grove, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Morton Grove is a coin-flip kind of day — temperatures average a mild 53° high, but the thermometer has swung anywhere from a bitter 25° (2002) to a t-shirt-worthy 76° (2010). There's a 45% chance of rain, so an umbrella is a smart call, though snow is essentially off the table.
Morton Grove doesn't mess around at the extremes — a scorching 104° in July 2012 and a brutal -21° in January 2019 represent a 125-degree swing in the same zip code. A single June day in 2013 dropped 4.53 inches of rain, a reminder that Chicago's suburbs can get hit hard when storms roll through.
Summer is the clear sweet spot, with highs peaking around 84-85° in mid-July and comfortable 80° days through June. If you're cold-averse, avoid mid-January, when average highs barely crack 30°. The tail end of June into early July is the wettest stretch of the year, averaging over an inch of rain per week.