Historical weather data, all-time temperature records, and monthly climate averages for Greater Grand Crossing, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Greater Grand Crossing sits in that classic Chicago spring no-man's-land — expect a high around 54° and a low near 37°, with nearly even odds of rain (43%). The date has swung wildly, from a 76° stunner in 2021 to a bitter 27° low back in 2018, so layer up and don't trust the forecast too far out.
Greater Grand Crossing has seen it all across its 29-year record: a suffocating 104° on July 30, 1999 and a brutal -22° on January 30, 2019 — a 126-degree swing that tells you everything about Chicago weather. The wettest single day dumped 5.2 inches of rain on October 14, 2017, while December 11, 2000 buried the neighborhood under 14.3 inches of snow.
Summer is the sweet spot here, peaking the week of July 16–22 with average highs of 86°, while mid-January bottoms out around 30°. If you're trying to stay dry, avoid early May — the week of May 7–13 is the wettest of the year, averaging over an inch of precipitation. Spring and fall offer mild shoulder seasons, with April averaging 60° and October at 64°.