Historical weather data, all-time temperature records, and monthly climate averages for Lower West Side, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Lower West Side typically lands in that unsettled spring sweet spot — average highs around 55° with lows still dipping to 37°. The date has swung hard in both directions over 28 years, from a balmy 78° in 2021 to a bitter 24° in 2018. There's a 36% chance of rain today, but snow is effectively off the table.
Lower West Side plays for keeps: a 104° scorcher in July 1999 and a -22° gut-punch in January 2019 represent a jaw-dropping 126-degree swing in the historical record. October 2017 brought the wettest single day on the books at 5.2 inches, and December 2000 buried the neighborhood under 14.3 inches of snow in one shot.
Summer is the clear headliner here — highs average 85° the week of July 16th and the warmest months stretch comfortably from June through August. If you're cold-averse, avoid mid-January, when average highs barely crack 30°. Pack an umbrella for early May, the wettest stretch of the year.